{"id":8715,"date":"2025-10-02T02:34:31","date_gmt":"2025-10-02T02:34:31","guid":{"rendered":"https:\/\/www.jymachinetech.com\/?p=8715"},"modified":"2025-10-02T02:34:31","modified_gmt":"2025-10-02T02:34:31","slug":"toffee-production-the-science-behind-perfect-candy-making-in-2025","status":"publish","type":"post","link":"https:\/\/www.jymachinetech.com\/vi\/toffee-production-the-science-behind-perfect-candy-making-in-2025\/","title":{"rendered":"S\u1ea3n Xu\u1ea5t Toffee: Khoa H\u1ecdc \u0110\u1eb1ng Sau Vi\u1ec7c L\u00e0m K\u1eb9o Ho\u00e0n H\u1ea3o n\u0103m 2025"},"content":{"rendered":"
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Khoa H\u1ecdc V\u1ec1 K\u1eb9o Toffee Ho\u00e0n H\u1ea3o: Ph\u00e2n T\u00edch K\u1ef9 Thu\u1eadt Quy Tr\u00ecnh S\u1ea3n Xu\u1ea5t<\/h2>\n
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Gi\u1edbi thi\u1ec7u<\/h3>\n
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L\u00e0m k\u1eb9o toffee ho\u00e0n h\u1ea3o kh\u00f4ng ph\u1ea3i l\u00e0 c\u00f3 m\u1ed9t c\u00f4ng th\u1ee9c b\u00ed m\u1eadt. \u0110\u00f3 l\u00e0 ki\u1ec3m so\u00e1t c\u00e1c ph\u1ea3n \u1ee9ng h\u00f3a h\u1ecdc v\u00e0 thay \u0111\u1ed5i v\u1eadt l\u00fd quan tr\u1ecdng m\u1ed9t c\u00e1ch ch\u00ednh x\u00e1c. Qu\u00e1 tr\u00ecnh n\u00e0y gi\u1ed1ng nh\u01b0 \u0111i\u1ec1u khi\u1ec3n m\u1ed9t d\u00e0n nh\u1ea1c h\u00f3a h\u1ecdc. Nh\u1eefng thay \u0111\u1ed5i nh\u1ecf v\u1ec1 nhi\u1ec7t \u0111\u1ed9 ho\u1eb7c th\u1eddi gian c\u00f3 th\u1ec3 thay \u0111\u1ed5i ho\u00e0n to\u00e0n s\u1ea3n ph\u1ea9m cu\u1ed1i c\u00f9ng c\u1ee7a b\u1ea1n.<\/div>\n
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\u0110\u00e2y l\u00e0 \u0111i\u1ec3m ch\u00ednh c\u1ee7a ch\u00fang t\u00f4i: k\u1eb9o toffee \u0111\u1eb7c bi\u1ec7t \u0111\u1ebfn t\u1eeb s\u1ef1 c\u00e2n b\u1eb1ng gi\u1eefa hai qu\u00e1 tr\u00ecnh c\u01a1 b\u1ea3n. \u0110\u00f3 l\u00e0 ph\u1ea3n \u1ee9ng Maillard v\u00e0 caramel h\u00f3a. C\u00f9ng nhau, ch\u00fang t\u1ea1o ra t\u1ea5t c\u1ea3 h\u01b0\u01a1ng v\u1ecb, m\u00f9i th\u01a1m v\u00e0 m\u00e0u s\u1eafc l\u00e0m cho k\u1eb9o ch\u1ea5t l\u01b0\u1ee3ng cao tr\u1edf n\u00ean \u0111\u1eb7c bi\u1ec7t. Hi\u1ec3u ch\u00fang kh\u00f4ng ph\u1ea3i l\u00e0 t\u00f9y ch\u1ecdn\u2014\u0111\u00f3 l\u00e0 n\u1ec1n t\u1ea3ng c\u1ee7a th\u00e0nh c\u00f4ng nh\u1ea5t qu\u00e1n.<\/div>\n
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B\u00e0i vi\u1ebft n\u00e0y xem x\u00e9t s\u00e2u s\u1eafc, d\u1ef1a tr\u00ean khoa h\u1ecdc v\u1ec1 c\u00e1c nguy\u00ean t\u1eafc n\u00e0y. Ch\u00fang ta s\u1ebd b\u1eaft \u0111\u1ea7u v\u1edbi h\u00f3a h\u1ecdc c\u1ed1t l\u00f5i th\u00fac \u0111\u1ea9y s\u1ef1 ph\u00e1t tri\u1ec3n h\u01b0\u01a1ng v\u1ecb. Sau \u0111\u00f3, ch\u00fang ta s\u1ebd xem x\u00e9t t\u1eebng th\u00e0nh ph\u1ea7n l\u00e0m g\u00ec. Ch\u00fang t\u00f4i s\u1ebd cung c\u1ea5p m\u1ed9t h\u01b0\u1edbng d\u1eabn k\u1ef9 thu\u1eadt v\u1ec1 quy tr\u00ecnh<\/a> ki\u1ec3m so\u00e1t v\u00e0 kh\u00e1m ph\u00e1 c\u00e1c ch\u1ee7 \u0111\u1ec1 k\u1ebft c\u1ea5u n\u00e2ng cao. Cu\u1ed1i c\u00f9ng, ch\u00fang t\u00f4i s\u1ebd cung c\u1ea5p cho b\u1ea1n m\u1ed9t h\u01b0\u1edbng d\u1eabn c\u00f3 h\u1ec7 th\u1ed1ng \u0111\u1ec3 kh\u1eafc ph\u1ee5c c\u00e1c v\u1ea5n \u0111\u1ec1 s\u1ea3n xu\u1ea5t ph\u1ed5 bi\u1ebfn.<\/div>\n
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H\u00f3a H\u1ecdc N\u1ec1n T\u1ea3ng C\u1ee7a Toffee<\/h2>\n
\"M\u00e1y<\/a><\/div>\n

Vai Tr\u00f2 C\u1ee7a Caramel H\u00f3a<\/h3>\n
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Caramel h\u00f3a x\u1ea3y ra khi \u0111\u01b0\u1eddng b\u1ecb ph\u00e2n h\u1ee7y do nhi\u1ec7t. N\u00f3 x\u1ea3y ra khi axit amin h\u1ea7u nh\u01b0 kh\u00f4ng c\u00f3. Ch\u1ec9 nhi\u1ec7t m\u1edbi th\u00fac \u0111\u1ea9y qu\u00e1 tr\u00ecnh n\u00e0y.<\/div>\n
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\u0110\u1ea7u ti\u00ean, sucrose ph\u00e2n h\u1ee7y th\u00e0nh c\u00e1c kh\u1ed1i x\u00e2y d\u1ef1ng c\u1ee7a n\u00f3: glucose v\u00e0 fructose. \u0110\u00e2y \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 s\u1ef1 ngh\u1ecbch chuy\u1ec3n. Khi ti\u1ebfp t\u1ee5c \u0111un n\u00f3ng, c\u00e1c lo\u1ea1i \u0111\u01b0\u1eddng \u0111\u01a1n gi\u1ea3n n\u00e0y tr\u1ea3i qua qu\u00e1 tr\u00ecnh kh\u1eed n\u01b0\u1edbc ph\u1ee9c t\u1ea1p v\u00e0 c\u00e1c ph\u1ea3n \u1ee9ng li\u00ean k\u1ebft. \u0110i\u1ec1u n\u00e0y t\u1ea1o ra h\u00e0ng tr\u0103m h\u1ee3p ch\u1ea5t m\u1edbi. Ch\u00fang bao g\u1ed3m furan th\u01a1m v\u00e0 maltol th\u01a1m ngon.<\/div>\n
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Caramel h\u00f3a mang l\u1ea1i cho k\u1eb9o toffee m\u00e0u n\u00e2u \u0111\u1eadm. N\u00f3 t\u1ea1o ra c\u00e1c n\u1ed1t h\u01b0\u01a1ng \u0111\u1eb7c tr\u01b0ng c\u1ee7a h\u1ea1t d\u1ebb, b\u01a1 v\u00e0 h\u01a1i \u0111\u1eafng trong k\u1eb9o toffee \u0111\u01b0\u1ee3c n\u1ea5u ch\u00edn k\u1ef9. Qu\u00e1 tr\u00ecnh n\u00e0y c\u1ea7n nhi\u1ec7t \u0111\u1ed9 cao \u0111\u1ec3 ho\u1ea1t \u0111\u1ed9ng<\/a> \u1edf m\u1ed9t m\u1ee9c \u0111\u1ed9 c\u00f3 \u00fd ngh\u0129a.<\/div>\n
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Ph\u1ea3n \u1ee8ng Maillard<\/h3>\n
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Ph\u1ea3n \u1ee9ng Maillard th\u00ec kh\u00e1c. N\u00f3 li\u00ean quan \u0111\u1ebfn c\u00e1c axit amin ph\u1ea3n \u1ee9ng v\u1edbi \u0111\u01b0\u1eddng kh\u1eed. Trong s\u1ea3n xu\u1ea5t k\u1eb9o toffee, axit amin \u0111\u1ebfn t\u1eeb ch\u1ea5t r\u1eafn s\u1eefa. C\u00e1c lo\u1ea1i \u0111\u01b0\u1eddng kh\u1eed bao g\u1ed3m lactose t\u1eeb s\u1eefa v\u00e0 b\u1ea5t k\u1ef3 glucose ho\u1eb7c fructose n\u00e0o \u0111\u01b0\u1ee3c th\u00eam v\u00e0o.<\/div>\n
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\u0110\u00e2y kh\u00f4ng ph\u1ea3i l\u00e0 s\u1ef1 h\u00f3a n\u00e2u \u0111\u01b0\u1eddng \u0111\u01a1n gi\u1ea3n. \u0110\u00f3 l\u00e0 m\u1ed9t chu\u1ed7i ph\u1ea3n \u1ee9ng ph\u1ee9c t\u1ea1p t\u1ea1o ra v\u00f4 s\u1ed1 h\u1ee3p ch\u1ea5t h\u01b0\u01a1ng v\u1ecb v\u00e0 m\u00f9i th\u01a1m. C\u00e1c ph\u00e2n t\u1eed n\u00e0y mang l\u1ea1i cho k\u1eb9o toffee c\u00e1c n\u1ed1t h\u01b0\u01a1ng rang, m\u1eb7n v\u00e0 n\u00e2u ph\u1ee9c t\u1ea1p. \u0110i\u1ec1u n\u00e0y ph\u00e2n bi\u1ec7t k\u1eb9o toffee v\u1edbi caramel c\u1ee9ng \u0111\u01a1n gi\u1ea3n.<\/div>\n
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Ph\u1ea3n \u1ee9ng Maillard mang l\u1ea1i cho k\u1eb9o toffee s\u1ef1 ph\u1ee9c t\u1ea1p nhi\u1ec1u l\u1edbp phong ph\u00fa. N\u00f3 t\u1ea1o ra m\u1ed9t \u0111\u1ed9 s\u00e2u g\u1ea7n nh\u01b0 gi\u1ed1ng th\u1ecbt m\u00e0 kh\u00f4ng th\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c ch\u1ec9 v\u1edbi \u0111\u01b0\u1eddng v\u00e0 nhi\u1ec7t.<\/div>\n
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S\u1ef1 T\u01b0\u01a1ng T\u00e1c Ph\u1ea3n \u1ee8ng<\/h3>\n
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Trong s\u1ea3n xu\u1ea5t k\u1eb9o toffee, c\u1ea3 hai ph\u1ea3n \u1ee9ng x\u1ea3y ra \u0111\u1ed3ng th\u1eddi. Nh\u01b0ng t\u1ea7m quan tr\u1ecdng c\u1ee7a ch\u00fang thay \u0111\u1ed5i khi nhi\u1ec7t \u0111\u1ed9 t\u0103ng l\u00ean. S\u1ef1 c\u00e2n b\u1eb1ng gi\u1eefa ch\u00fang quy\u1ebft \u0111\u1ecbnh h\u01b0\u01a1ng v\u1ecb cu\u1ed1i c\u00f9ng.<\/div>\n
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Ph\u1ea3n \u1ee9ng Maillard b\u1eaft \u0111\u1ea7u t\u0103ng t\u1ed1c \u1edf nhi\u1ec7t \u0111\u1ed9 th\u1ea5p h\u01a1n, th\u01b0\u1eddng l\u00e0 kho\u1ea3ng 140\u00b0C (284\u00b0F). S\u1ef1 \u0111\u00f3ng g\u00f3p c\u1ee7a n\u00f3 t\u0103ng l\u00ean \u0111\u1ec1u \u0111\u1eb7n. N\u00f3 ph\u00e1t tri\u1ec3n c\u00e1c n\u1ed1t h\u01b0\u01a1ng m\u1eb7n v\u00e0 rang khi qu\u00e1 tr\u00ecnh n\u1ea5u ti\u1ebfn tri\u1ec3n.<\/div>\n
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S\u1ef1 caramel h\u00f3a \u0111\u00e1ng k\u1ec3 c\u1ea7n nhi\u1ec7t \u0111\u1ed9 cao h\u01a1n. N\u00f3 tr\u1edf n\u00ean r\u1ea5t ho\u1ea1t \u0111\u1ed9ng tr\u00ean 160\u00b0C (320\u00b0F). \u0110\u1ea9y k\u1eb9o m\u1ec1m v\u00e0o ph\u1ea1m vi n\u00e0y ph\u00e1t tri\u1ec3n h\u01b0\u01a1ng v\u1ecb \u0111\u1eadm \u0111\u00e0 h\u01a1n, c\u00f3 h\u01b0\u01a1ng h\u1ea1t. Nh\u01b0ng n\u00f3 c\u0169ng t\u1ea1o ra v\u1ecb \u0111\u1eafng. Ngh\u1ec7 thu\u1eadt l\u00e0m k\u1eb9o l\u00e0 d\u1eebng l\u1ea1i \u0111\u00fang th\u1eddi \u0111i\u1ec3m khi c\u00e1c ph\u1ea3n \u1ee9ng n\u00e0y \u0111\u00e3 t\u1ea1o ra s\u1ef1 c\u00e2n b\u1eb1ng mong mu\u1ed1n v\u1ec1 h\u01b0\u01a1ng v\u1ecb, m\u00e0u s\u1eafc v\u00e0 m\u00f9i th\u01a1m.<\/div>\n
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Ph\u00e2n t\u00edch ch\u1ee9c n\u0103ng th\u00e0nh ph\u1ea7n<\/h2>\n
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\u0110\u01b0\u1eddng l\u00e0m x\u01b0\u01a1ng s\u1ed1ng<\/h3>\n
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\u0110\u01b0\u1eddng cung c\u1ea5p c\u1ea5u tr\u00fac c\u01a1 b\u1ea3n v\u00e0 \u0111\u1ed9 ng\u1ecdt c\u1ee7a k\u1eb9o m\u1ec1m. Sucrose, hay \u0111\u01b0\u1eddng tinh luy\u1ec7n th\u00f4ng th\u01b0\u1eddng, l\u00e0 th\u00e0nh ph\u1ea7n ch\u00ednh. N\u00f3 cung c\u1ea5p ph\u1ea7n l\u1edbn c\u1ea5u tr\u00fac r\u1eafn v\u00e0 l\u00e0 nhi\u00ean li\u1ec7u ch\u00ednh cho qu\u00e1 tr\u00ecnh caramel h\u00f3a.<\/div>\n
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Tuy nhi\u00ean, ch\u1ec9 s\u1eed d\u1ee5ng sucrose m\u1ed9t m\u00ecnh t\u1ea1o ra nguy c\u01a1 k\u1ebft tinh kh\u00f4ng mong mu\u1ed1n. \u0110i\u1ec1u n\u00e0y d\u1eabn \u0111\u1ebfn k\u1ebft c\u1ea5u v\u1ee5n v\u1ee1. \u0110\u1ec3 ng\u0103n ch\u1eb7n \u0111i\u1ec1u n\u00e0y, ch\u00fang ta th\u00eam c\u00e1c \u201cch\u1ea5t \u0111i\u1ec1u ch\u1ec9nh\u201d nh\u01b0 xi-r\u00f4 glucose ho\u1eb7c xi-r\u00f4 ng\u00f4.<\/div>\n
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C\u00e1c lo\u1ea1i xi-r\u00f4 n\u00e0y ch\u1ee9a \u0111\u01b0\u1eddng invert (glucose v\u00e0 fructose) c\u00f9ng c\u00e1c carbohydrate ph\u1ee9c t\u1ea1p kh\u00e1c. Ch\u00fang can thi\u1ec7p v\u1eadt l\u00fd v\u00e0o s\u1ef1 s\u1eafp x\u1ebfp c\u00f3 tr\u1eadt t\u1ef1 c\u1ee7a c\u00e1c ph\u00e2n t\u1eed sucrose. \u0110i\u1ec1u n\u00e0y ng\u0103n ch\u1eb7n s\u1ef1 h\u00ecnh th\u00e0nh c\u00e1c tinh th\u1ec3 \u0111\u01b0\u1eddng l\u1edbn. \u0110i\u1ec1u n\u00e0y \u0111\u1ea3m b\u1ea3o k\u1eb9o m\u1ec1m cu\u1ed1i c\u00f9ng c\u00f3 k\u1ebft c\u1ea5u m\u1ecbn, gi\u1ed1ng nh\u01b0 th\u1ee7y tinh thay v\u00ec c\u00e1t.<\/div>\n
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Ch\u1ea5t b\u00e9o cho c\u1ea3m gi\u00e1c trong mi\u1ec7ng<\/h3>\n
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Ch\u1ea5t b\u00e9o r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 t\u1ea1o c\u1ea3m gi\u00e1c sang tr\u1ecdng trong mi\u1ec7ng, truy\u1ec1n h\u01b0\u01a1ng v\u1ecb v\u00e0 t\u00ednh d\u1ec5 x\u1eed l\u00fd c\u1ee7a k\u1eb9o m\u1ec1m. B\u01a1 kh\u00f4ng mu\u1ed1i l\u00e0 l\u1ef1a ch\u1ecdn truy\u1ec1n th\u1ed1ng v\u00e0 th\u01b0\u1eddng t\u1ed1t nh\u1ea5t.<\/div>\n
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B\u01a1 kh\u00f4ng ch\u1ec9 \u0111\u00f3ng g\u00f3p v\u1ec1 m\u1eb7t ch\u1ea5t b\u00e9o. Ch\u1ea5t b\u00e9o trong b\u01a1 cung c\u1ea5p \u0111\u1ed9 b\u00e9o \u0111\u1eb7c tr\u01b0ng v\u00e0 c\u1ea3m gi\u00e1c kem m\u1ecbn trong mi\u1ec7ng kh\u00f4ng g\u00ec s\u00e1nh b\u1eb1ng. C\u00e1c ch\u1ea5t r\u1eafn s\u1eefa (protein v\u00e0 lactose) c\u1ee7a n\u00f3 r\u1ea5t c\u1ea7n thi\u1ebft cho ph\u1ea3n \u1ee9ng Maillard. Ch\u00fang \u0111\u00f3ng g\u00f3p \u0111\u00e1ng k\u1ec3 v\u00e0o h\u01b0\u01a1ng v\u1ecb v\u00e0 m\u00e0u s\u1eafc. H\u00e0m l\u01b0\u1ee3ng n\u01b0\u1edbc trong b\u01a1, th\u01b0\u1eddng l\u00e0 15-18%, c\u0169ng r\u1ea5t quan tr\u1ecdng. Ban \u0111\u1ea7u tan ch\u1ea3y c\u00e1c \u0111\u01b0\u1eddng<\/a> v\u00e0 h\u00ecnh th\u00e0nh m\u1ed9t h\u1ed7n h\u1ee3p \u1ed5n \u0111\u1ecbnh.<\/div>\n
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C\u00e1c lo\u1ea1i ch\u1ea5t b\u00e9o kh\u00e1c c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng, nh\u01b0ng ch\u00fang v\u1ec1 c\u01a1 b\u1ea3n thay \u0111\u1ed5i s\u1ea3n ph\u1ea9m cu\u1ed1i c\u00f9ng. M\u1ee1 th\u1ef1c v\u1eadt c\u00f3 th\u1ec3 ti\u1ebft ki\u1ec7m chi ph\u00ed v\u00e0 \u1ed5n \u0111\u1ecbnh h\u1ed7n h\u1ee3p. Nh\u01b0ng th\u01b0\u1eddng t\u1ea1o c\u1ea3m gi\u00e1c trong mi\u1ec7ng gi\u1ed1ng nh\u01b0 s\u00e1p v\u00e0 thi\u1ebfu c\u00e1c ch\u1ea5t r\u1eafn s\u1eefa c\u1ea7n thi\u1ebft cho qu\u00e1 tr\u00ecnh n\u00e2u Maillard s\u00e2u. D\u1ea7u d\u1eeba c\u00f3 th\u1ec3 t\u1ea1o ra \u0111\u1ed9 gi\u00f2n r\u1ea5t c\u1ee9ng v\u00e0 ph\u00f9 h\u1ee3p cho c\u00e1c c\u00f4ng th\u1ee9c thu\u1ea7n chay. Nh\u01b0ng h\u01b0\u01a1ng v\u1ecb c\u1ee7a n\u00f3 \u0111\u1eb7c tr\u01b0ng v\u00e0 thi\u1ebfu s\u1ef1 phong ph\u00fa c\u1ee7a s\u1eefa truy\u1ec1n th\u1ed1ng.<\/div>\n
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\u0110\u1eb7c tr\u01b0ng<\/div>\n<\/td>\n
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B\u01a1 kh\u00f4ng mu\u1ed1i<\/div>\n<\/td>\n
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M\u1ee1 th\u1ef1c v\u1eadt<\/div>\n<\/td>\n
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D\u1ea7u d\u1eeba<\/div>\n<\/td>\n<\/tr>\n
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\u0110\u00f3ng g\u00f3p ch\u00ednh<\/div>\n<\/td>\n
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H\u01b0\u01a1ng v\u1ecb \u0111\u1eadm \u0111\u00e0, ch\u1ea5t r\u1eafn s\u1eefa cho Maillard<\/div>\n<\/td>\n
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\u1ed4n \u0111\u1ecbnh h\u1ed7n h\u1ee3p, ti\u1ebft ki\u1ec7m chi ph\u00ed<\/div>\n<\/td>\n
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\u0110\u1ed9 gi\u00f2n c\u1ee9ng, h\u01b0\u01a1ng v\u1ecb \u0111\u1eb7c tr\u01b0ng<\/div>\n<\/td>\n<\/tr>\n
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Ch\u1ea5t r\u1eafn s\u1eefa<\/div>\n<\/td>\n
\n
C\u00f3 (G\u00f3p ph\u1ea7n l\u00e0m n\u00e2u h\u01a1n)<\/div>\n<\/td>\n
\n
Kh\u00f4ng (ho\u1eb7c r\u1ea5t th\u1ea5p)<\/div>\n<\/td>\n
\n
No<\/div>\n<\/td>\n<\/tr>\n
\n
N\u1ed9i dung n\u01b0\u1edbc<\/div>\n<\/td>\n
\n
~15-18% (\u1ea2nh h\u01b0\u1edfng \u0111\u1ebfn th\u1eddi gian n\u1ea5u)<\/div>\n<\/td>\n
\n
Thay \u0111\u1ed5i (C\u00f3 th\u1ec3 cao h\u01a1n)<\/div>\n<\/td>\n
\n
0%<\/div>\n<\/td>\n<\/tr>\n
\n
C\u1ea3m gi\u00e1c trong mi\u1ec7ng<\/div>\n<\/td>\n
\n
Kem, \u0111\u1eadm \u0111\u00e0<\/div>\n<\/td>\n
\n
C\u00f3 th\u1ec3 s\u00e1p ho\u1eb7c d\u1ea7u<\/div>\n<\/td>\n
\n
S\u1ea1ch, tan ch\u1ea3y nhanh<\/div>\n<\/td>\n<\/tr>\n
\n
Ph\u00f9 h\u1ee3p \u0111\u1ec3<\/div>\n<\/td>\n
\n
H\u01b0\u01a1ng v\u1ecb c\u1ed5 \u0111i\u1ec3n, ch\u1ea5t l\u01b0\u1ee3ng cao<\/div>\n<\/td>\n
\n
S\u1ea3n xu\u1ea5t s\u1ed1 l\u01b0\u1ee3ng l\u1edbn, nh\u1ea1y c\u1ea3m v\u1ec1 chi ph\u00ed<\/div>\n<\/td>\n
\n
K\u1eb9o b\u01a1 vegan, c\u00e1c lo\u1ea1i h\u01b0\u01a1ng v\u1ecb \u0111\u1eb7c tr\u01b0ng<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
<\/div>\n

S\u1eefa l\u00e0m nhi\u00ean li\u1ec7u Maillard<\/h3>\n
<\/div>\n
C\u00e1c th\u00e0nh ph\u1ea7n t\u1eeb s\u1eefa l\u00e0 ngu\u1ed3n ch\u00ednh cung c\u1ea5p protein v\u00e0 \u0111\u01b0\u1eddng kh\u1eed \u0111\u1ec3 th\u00fac \u0111\u1ea9y ph\u1ea3n \u1ee9ng Maillard.<\/div>\n
<\/div>\n
S\u1eefa t\u01b0\u01a1i ho\u1eb7c kem cung c\u1ea5p n\u01b0\u1edbc, ch\u1ea5t b\u00e9o, lactose (\u0111\u01b0\u1eddng kh\u1eed), v\u00e0 c\u00e1c protein casein v\u00e0 whey (ngu\u1ed3n amino acid). T\u1ef7 l\u1ec7 ch\u1ea5t b\u00e9o so v\u1edbi n\u01b0\u1edbc trong kem so v\u1edbi s\u1eefa \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn s\u1ef1 pha tr\u1ed9n ban \u0111\u1ea7u v\u00e0 \u0111\u1ed9 \u0111\u1eadm \u0111\u1eb7c cu\u1ed1i c\u00f9ng.<\/div>\n
<\/div>\n
S\u1eefa \u0111\u1eb7c c\u00f3 \u0111\u01b0\u1eddng l\u00e0 ch\u1ea5t t\u0103ng t\u1ed1c m\u1ea1nh trong qu\u00e1 tr\u00ecnh l\u00e0m k\u1eb9o b\u01a1. N\u00f3 \u0111\u00e3 \u0111\u01b0\u1ee3c c\u00f4 \u0111\u1eb7c tr\u01b0\u1edbc v\u00e0 ch\u1ee9a h\u00e0m l\u01b0\u1ee3ng cao c\u1ea3 \u0111\u01b0\u1eddng v\u00e0 ch\u1ea5t r\u1eafn s\u1eefa. C\u00e1c protein c\u1ee7a n\u00f3 \u0111\u00e3 tr\u1ea3i qua m\u1ed9t s\u1ed1 qu\u00e1 tr\u00ecnh x\u1eed l\u00fd nhi\u1ec7t. \u0110i\u1ec1u n\u00e0y l\u00e0m cho ch\u00fang s\u1eb5n s\u00e0ng tham gia ph\u1ea3n \u1ee9ng Maillard h\u01a1n. \u0110i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 r\u00fat ng\u1eafn th\u1eddi gian n\u1ea5u v\u00e0 ph\u00e1t tri\u1ec3n h\u01b0\u01a1ng v\u1ecb s\u00e2u, ph\u1ee9c t\u1ea1p nhanh h\u01a1n.<\/div>\n
\"stroopwafels,<\/a><\/div>\n

Ch\u1ea5t nh\u0169 h\u00f3a v\u00e0 ph\u1ee5 gia<\/h3>\n
<\/div>\n
Ngo\u00e0i c\u00e1c th\u00e0nh ph\u1ea7n c\u1ed1t l\u00f5i, m\u1ed9t s\u1ed1 ph\u1ee5 gia \u0111\u00f3ng vai tr\u00f2 k\u1ef9 thu\u1eadt quan tr\u1ecdng. Ch\u1ea5t nh\u0169 h\u00f3a th\u01b0\u1eddng c\u1ea7n thi\u1ebft cho c\u00e1c c\u00f4ng th\u1ee9c quy m\u00f4 l\u1edbn ho\u1eb7c c\u00f3 h\u00e0m l\u01b0\u1ee3ng ch\u1ea5t b\u00e9o cao.<\/div>\n
<\/div>\n
Lecithin, th\u01b0\u1eddng t\u1eeb \u0111\u1eadu n\u00e0nh ho\u1eb7c h\u01b0\u1edbng d\u01b0\u01a1ng, l\u00e0 m\u1ed9t ch\u1ea5t nh\u0169 h\u00f3a r\u1ea5t hi\u1ec7u qu\u1ea3. C\u1ea5u tr\u00fac ph\u00e2n t\u1eed c\u1ee7a n\u00f3 c\u00f3 c\u1ea3 \u0111\u1ea7u th\u00edch n\u01b0\u1edbc v\u00e0 \u0111\u1ea7u th\u00edch b\u00e9o. \u0110i\u1ec1u n\u00e0y cho ph\u00e9p n\u00f3 n\u1eb1m \u1edf r\u00eca gi\u1eefa sir\u00f4 \u0111\u01b0\u1eddng v\u00e0<\/a> b\u01a1 b\u00e9o. N\u00f3 t\u1ea1o ra v\u00e0 duy tr\u00ec m\u1ed9t h\u1ed7n h\u1ee3p \u1ed5n \u0111\u1ecbnh v\u00e0 ng\u0103n k\u1eb9o b\u01a1 kh\u1ecfi b\u1ecb d\u1ea7u ho\u1eb7c \u201cb\u1ecb v\u1ee1\u201d.<\/div>\n
<\/div>\n
Mu\u1ed1i l\u00e0 m\u1ed9t th\u00e0nh ph\u1ea7n ph\u1ee5 quan tr\u1ecdng kh\u00e1c. Trong khi n\u00f3 mang l\u1ea1i h\u01b0\u01a1ng v\u1ecb ri\u00eang, vai tr\u00f2 ch\u00ednh c\u1ee7a n\u00f3 l\u00e0 l\u00e0m n\u1ed5i b\u1eadt v\u00e0 l\u00e0m tr\u00f2n c\u00e1c h\u01b0\u01a1ng v\u1ecb kh\u00e1c ph\u00e1t tri\u1ec3n trong qu\u00e1 tr\u00ecnh n\u1ea5u \u0103n. N\u00f3 c\u00e2n b\u1eb1ng m\u1ed9t c\u00e1ch tinh t\u1ebf \u0111\u1ed9 ng\u1ecdt \u0111\u1eadm. N\u00f3 l\u00e0m n\u1ed5i b\u1eadt c\u00e1c n\u1ed1t ph\u1ee9c t\u1ea1p t\u1eeb ph\u1ea3n \u1ee9ng Maillard v\u00e0 caramel h\u00f3a.<\/div>\n
<\/div>\n

L\u00e0m ch\u1ee7 Qu\u1ea3n l\u00fd Quy tr\u00ecnh<\/h2>\n
<\/div>\n

Giai \u0111o\u1ea1n Ph\u00e2n t\u00e1n Nh\u0169 h\u00f3a<\/h3>\n
<\/div>\n
S\u1ea3n xu\u1ea5t k\u1eb9o Toffee b\u1eaft \u0111\u1ea7u b\u1eb1ng vi\u1ec7c t\u1ea1o ra m\u1ed9t h\u1ed7n h\u1ee3p nh\u0169 h\u00f3a \u1ed5n \u0111\u1ecbnh. Giai \u0111o\u1ea1n ban \u0111\u1ea7u n\u00e0y li\u00ean quan \u0111\u1ebfn vi\u1ec7c l\u00e0m tan ch\u1ea3y nh\u1eb9 nh\u00e0ng b\u01a1 v\u00e0 h\u00f2a tan \u0111\u01b0\u1eddng trong n\u01b0\u1edbc c\u00f3 s\u1eb5n t\u1eeb b\u01a1 v\u00e0 b\u1ea5t k\u1ef3 s\u1ea3n ph\u1ea9m s\u1eefa n\u00e0o \u0111\u01b0\u1ee3c th\u00eam v\u00e0o.<\/div>\n
<\/div>\n
Ch\u00fang ta \u0111ang t\u1ea1o ra m\u1ed9t nh\u0169 t\u01b0\u01a1ng n\u01b0\u1edbc trong d\u1ea7u. C\u00e1c gi\u1ecdt nh\u1ecf c\u1ee7a sirup \u0111\u01b0\u1eddng ph\u00e2n t\u00e1n kh\u1eafp pha li\u00ean t\u1ee5c c\u1ee7a m\u1ee1 l\u1ecfng. Vi\u1ec7c \u0111\u1ea1t \u0111\u01b0\u1ee3c m\u1ed9t nh\u0169 t\u01b0\u01a1ng \u1ed5n \u0111\u1ecbnh t\u1eeb \u0111\u1ea7u l\u00e0 \u0111i\u1ec1u t\u1ed1i quan tr\u1ecdng.<\/div>\n
<\/div>\n
Th\u1ea5t b\u1ea1i \u1edf giai \u0111o\u1ea1n n\u00e0y d\u1eabn \u0111\u1ebfn h\u1ed7n h\u1ee3p 'h\u1ecfng'. Ch\u1ea5t b\u00e9o t\u00e1ch ra kh\u1ecfi sirup \u0111\u01b0\u1eddng. \u0110i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 do heating qu\u00e1 nhanh, tr\u1ed9n ban \u0111\u1ea7u kh\u00f4ng \u0111\u1ee7 ho\u1eb7c t\u1ef7 l\u1ec7 n\u01b0\u1edbc v\u00e0 ch\u1ea5t b\u00e9o kh\u00f4ng ph\u00f9 h\u1ee3p. M\u1ed9t nh\u0169 t\u01b0\u01a1ng b\u1ecb h\u1ecfng r\u1ea5t kh\u00f3 kh\u00f4i ph\u1ee5c. N\u00f3 s\u1ebd d\u1eabn \u0111\u1ebfn s\u1ea3n ph\u1ea9m cu\u1ed1i c\u00f9ng nh\u1eddn, t\u00e1ch r\u1eddi. Vi\u1ec7c khu\u1ea5y nh\u1eb9 nh\u00e0ng li\u00ean t\u1ee5c trong giai \u0111o\u1ea1n n\u00e0y l\u00e0 r\u1ea5t quan tr\u1ecdng.<\/div>\n
<\/div>\n

\u0110\u01b0\u1eddng cong Nhi\u1ec7t \u0111\u1ed9 N\u00f3ng ch\u1ea3y Quan tr\u1ecdng<\/h3>\n
<\/div>\n
Khi m\u1ed9t nh\u0169 t\u01b0\u01a1ng \u1ed5n \u0111\u1ecbnh \u0111\u00e3 h\u00ecnh th\u00e0nh, giai \u0111o\u1ea1n nhi\u1ec7t \u0111\u1ed9 n\u00f3ng ch\u1ea3y quan tr\u1ecdng b\u1eaft \u0111\u1ea7u. Khi nhi\u1ec7t \u0111\u1ed9 c\u1ee7a h\u1ed7n h\u1ee3p t\u0103ng l\u00ean, n\u01b0\u1edbc bay h\u01a1i v\u00e0 n\u1ed3ng \u0111\u1ed9 \u0111\u01b0\u1eddng t\u0103ng l\u00ean. Qu\u00e1 tr\u00ecnh n\u00e0y qua c\u00e1c giai \u0111o\u1ea1n c\u1ee7a \u0111\u01b0\u1eddng l\u00e0 trung t\u00e2m c\u1ee7a vi\u1ec7c l\u00e0m k\u1eb9o toffee. M\u1ed7i giai \u0111o\u1ea1n t\u01b0\u01a1ng \u1ee9ng v\u1edbi m\u1ed9t k\u1ebft c\u1ea5u v\u00e0 h\u01b0\u01a1ng v\u1ecb cu\u1ed1i c\u00f9ng c\u1ee5 th\u1ec3. Ki\u1ec3m so\u00e1t nhi\u1ec7t \u0111\u1ed9 ch\u00ednh x\u00e1c l\u00e0 kh\u00f4ng th\u1ec3 th\u01b0\u01a1ng l\u01b0\u1ee3ng.<\/div>\n
<\/div>\n
Ch\u00fang t\u00f4i theo d\u00f5i h\u00e0nh tr\u00ecnh n\u00e0y b\u1eb1ng nhi\u1ec7t k\u1ebf k\u1ef9 thu\u1eadt s\u1ed1 \u0111\u00e3 hi\u1ec7u ch\u1ec9nh. Nh\u01b0ng ch\u00fang t\u00f4i c\u0169ng d\u1ef1a v\u00e0o c\u00e1c d\u1ea5u hi\u1ec7u v\u1eadt l\u00fd v\u00e0 th\u1ecb gi\u00e1c \u0111\u1ec3 nh\u1eadn bi\u1ebft c\u00e1c thay \u0111\u1ed5i h\u00f3a h\u1ecdc b\u00ean d\u01b0\u1edbi. H\u1ed7n h\u1ee3p s\u1ebd \u0111\u1eb7c l\u1ea1i. M\u00e0u s\u1eafc s\u1ebd \u0111\u1eadm d\u1ea7n t\u1eeb kem nh\u1ea1t \u0111\u1ebfn h\u01b0\u01a1ng caramel \u0111\u1eadm khi ph\u1ea3n \u1ee9ng Maillard v\u00e0 caramel h\u00f3a t\u0103ng t\u1ed1c. Quan s\u00e1t \u0111\u1ed9 b\u00f3ng c\u1ee7a h\u1ed7n h\u1ee3p. M\u1ed9t s\u1ef1 m\u1edd \u0111\u1ee5c \u0111\u1ed9t ng\u1ed9t c\u00f3 th\u1ec3 b\u00e1o hi\u1ec7u s\u1ef1 k\u1ebft tinh s\u1edbm \u2014 m\u1ed9t d\u1ea5u hi\u1ec7u c\u1ea3nh b\u00e1o quan tr\u1ecdng.<\/div>\n
<\/div>\n
Giai \u0111o\u1ea1n N\u00f3ng ch\u1ea3y c\u1ee9ng l\u00e0 m\u1ee5c ti\u00eau cho k\u1eb9o c\u1ee9ng gi\u00f2n c\u1ed5 \u0111i\u1ec3n. T\u1ea1i th\u1eddi \u0111i\u1ec3m n\u00e0y, h\u00e0m l\u01b0\u1ee3ng n\u01b0\u1edbc c\u1ef1c th\u1ea5p (kho\u1ea3ng 1%). \u0110\u01b0\u1eddng \u0111\u00e3 t\u1ea1o th\u00e0nh m\u1ed9t dung d\u1ecbch si\u00eau b\u00e3o h\u00f2a, v\u00f4 \u0111\u1ecbnh h\u00ecnh s\u1eb5n s\u00e0ng \u0111\u1ec3 l\u00e0m ngu\u1ed9i th\u00e0nh d\u1ea1ng th\u1ee7y tinh.<\/div>\n
<\/div>\n
\n\n\n\n\n\n<\/colgroup>\n\n\n\n\n\n\n\n
\n
T\u00ean Giai \u0111o\u1ea1n<\/div>\n<\/td>\n
\n
Ph\u1ea1m vi Nhi\u1ec7t \u0111\u1ed9 (\u00b0F \/ \u00b0C)<\/div>\n<\/td>\n
\n
M\u00f4 t\u1ea3 V\u1eadt l\u00fd<\/div>\n<\/td>\n
\n
Qu\u00e1 tr\u00ecnh H\u00f3a h\u1ecdc Chi ph\u1ed1i<\/div>\n<\/td>\n<\/tr>\n
\n
B\u00f3ng m\u1ec1m<\/div>\n<\/td>\n
\n
235-245\u00b0F \/ 112-116\u00b0C<\/div>\n<\/td>\n
\n
H\u00ecnh th\u00e0nh m\u1ed9t qu\u1ea3 b\u00f3ng m\u1ec1m, d\u1ec5 u\u1ed1n trong n\u01b0\u1edbc l\u1ea1nh.<\/div>\n<\/td>\n
\n
B\u1ed1c h\u01a1i, n\u1ed3ng \u0111\u1ed9 \u0111\u01b0\u1eddng t\u0103ng l\u00ean.<\/div>\n<\/td>\n<\/tr>\n
\n
B\u00f3ng c\u1ee9ng<\/div>\n<\/td>\n
\n
245-250\u00b0F \/ 118-120\u00b0C<\/div>\n<\/td>\n
\n
H\u00ecnh th\u00e0nh m\u1ed9t vi\u00ean b\u00f3ng c\u1ee9ng, v\u1eabn c\u00f2n d\u1ebbo.<\/div>\n<\/td>\n
\n
Ph\u1ea3n \u1ee9ng Maillard b\u1eaft \u0111\u1ea7u t\u0103ng t\u1ed1c.<\/div>\n<\/td>\n<\/tr>\n
\n
B\u00f3ng c\u1ee9ng<\/div>\n<\/td>\n
\n
250-266\u00b0F \/ 121-130\u00b0C<\/div>\n<\/td>\n
\n
H\u00ecnh th\u00e0nh m\u1ed9t vi\u00ean b\u00f3ng c\u1ee9ng, kh\u00f3 bi\u1ebfn d\u1ea1ng.<\/div>\n<\/td>\n
\n
Ph\u1ea3n \u1ee9ng Maillard \u0111\u00e1ng k\u1ec3, m\u00e0u s\u1eafc \u0111\u1eadm h\u01a1n.<\/div>\n<\/td>\n<\/tr>\n
\n
Soft-Crack<\/div>\n<\/td>\n
\n
270-290\u00b0F \/ 132-143\u00b0C<\/div>\n<\/td>\n
\n
T\u00e1ch th\u00e0nh c\u00e1c s\u1ee3i c\u1ee9ng nh\u01b0ng kh\u00f4ng gi\u00f2n.<\/div>\n<\/td>\n
\n
Ph\u1ea3n \u1ee9ng Maillard m\u00e3nh li\u1ec7t, b\u1eaft \u0111\u1ea7u caramel h\u00f3a.<\/div>\n<\/td>\n<\/tr>\n
\n
Hard-Crack<\/div>\n<\/td>\n
\n
295-310\u00b0F \/ 146-154\u00b0C<\/div>\n<\/td>\n
\n
C\u00e1c s\u1ee3i r\u1ea5t gi\u00f2n, giai \u0111o\u1ea1n k\u1eb9o b\u01a1 c\u1ed5 \u0111i\u1ec3n.<\/div>\n<\/td>\n
\n
Caramelization hi\u1ec7n \u0111ang ho\u1ea1t \u0111\u1ed9ng m\u1ea1nh m\u1ebd.<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
<\/div>\n

Giai \u0111o\u1ea1n l\u00e0m ngu\u1ed9i quan tr\u1ecdng<\/h3>\n
<\/div>\n
Khi \u0111\u1ea1t \u0111\u1ebfn nhi\u1ec7t \u0111\u1ed9 m\u1ee5c ti\u00eau, qu\u00e1 tr\u00ecnh n\u1ea5u ph\u1ea3i d\u1eebng ngay l\u1eadp t\u1ee9c v\u00e0 ch\u00ednh x\u00e1c. Giai \u0111o\u1ea1n l\u00e0m ngu\u1ed9i quan tr\u1ecdng kh\u00f4ng k\u00e9m giai \u0111o\u1ea1n l\u00e0m n\u00f3ng. \u0110\u00e2y l\u00e0 n\u01a1i k\u1ebft c\u1ea5u cu\u1ed1i c\u00f9ng \u0111\u01b0\u1ee3c c\u1ed1 \u0111\u1ecbnh.<\/div>\n
<\/div>\n
Sau khi \u0111\u1ea1t nhi\u1ec7t \u0111\u1ed9 m\u1ee5c ti\u00eau, t\u1ea5t c\u1ea3 vi\u1ec7c khu\u1ea5y \u0111\u1ec1u ph\u1ea3i d\u1eebng l\u1ea1i. Khu\u1ea5y dung d\u1ecbch \u0111\u01b0\u1eddng si\u00eau b\u00e3o h\u00f2a khi l\u00e0m ngu\u1ed9i s\u1ebd g\u00e2y ra k\u1ebft tinh. Qu\u00e1 tr\u00ecnh n\u00e0y g\u1ecdi l\u00e0 \u201cgieo h\u1ea1t.\u201d M\u1ed9t tinh th\u1ec3 \u0111\u01b0\u1eddng l\u1ea1c l\u00f5ng c\u00f3 th\u1ec3 k\u00edch ho\u1ea1t ph\u1ea3n \u1ee9ng d\u00e2y chuy\u1ec1n. N\u00f3 c\u00f3 th\u1ec3 bi\u1ebfn to\u00e0n b\u1ed9 m\u1ebb k\u1eb9o th\u00e0nh m\u1ed9t kh\u1ed1i r\u1ed7ng, \u0111\u1ee5c h\u01a1n so v\u1edbi th\u1ee7y tinh trong su\u1ed1t.<\/div>\n
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K\u1eb9o b\u01a1 n\u00f3ng n\u00ean \u0111\u01b0\u1ee3c \u0111\u1ed5 ngay l\u1eadp t\u1ee9c l\u00ean b\u1ec1 m\u1eb7t m\u00e1t, kh\u00f4ng ph\u1ea3n \u1ee9ng. M\u1ed9t t\u1ea5m \u0111\u00e1 c\u1ea9m th\u1ea1ch truy\u1ec1n th\u1ed1ng v\u00e0 l\u00fd t\u01b0\u1edfng do c\u00f3 kh\u1ed1i l\u01b0\u1ee3ng nhi\u1ec7t l\u1edbn. \u0110i\u1ec1u n\u00e0y gi\u00fap r\u00fat nhi\u1ec7t ra kh\u1ecfi k\u1eb9o nhanh ch\u00f3ng v\u00e0 \u0111\u1ec1u \u0111\u1eb7n. C\u00e1c t\u1ea5m silicon th\u1ef1c ph\u1ea9m l\u00e0 m\u1ed9t l\u1ef1a ch\u1ecdn hi\u1ec7n \u0111\u1ea1i, th\u1ef1c t\u1ebf. Ch\u00fang c\u0169ng cung c\u1ea5p kh\u1ea3 n\u0103ng truy\u1ec1n nhi\u1ec7t t\u1ed1t v\u00e0 d\u1ec5 d\u00e0ng th\u00e1o ra. Vi\u1ec7c l\u00e0m ngu\u1ed9i nhanh n\u00e0y l\u00e0 c\u1ea7n thi\u1ebft \u0111\u1ec3 \u201c\u0111\u00f3ng b\u0103ng\u201d c\u00e1c ph\u00e2n t\u1eed \u0111\u01b0\u1eddng trong tr\u1ea1ng th\u00e1i r\u1ed1i lo\u1ea1n, v\u00f4 \u0111\u1ecbnh h\u00ecnh. \u0110i\u1ec1u n\u00e0y ng\u0103n ch\u00fang t\u1ed5 ch\u1ee9c th\u00e0nh m\u1ea1ng tinh th\u1ec3.<\/div>\n
<\/div>\n

Rheology v\u00e0 K\u1ebft tinh<\/h2>\n
\"m\u1ed9t<\/a><\/div>\n

K\u1eb9o b\u01a1 nh\u01b0 m\u1ed9t Ch\u1ea5t r\u1eafn v\u00f4 \u0111\u1ecbnh h\u00ecnh<\/h3>\n
<\/div>\n
K\u1ebft c\u1ea5u mong mu\u1ed1n c\u1ee7a k\u1eb9o b\u01a1 c\u1ee9ng c\u1ed5 \u0111i\u1ec3n l\u00e0 gi\u1ed1ng nh\u01b0 m\u1ed9t \u201ck\u00ednh\u201d. Trong khoa h\u1ecdc, \u0111i\u1ec1u n\u00e0y \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 r\u1eafn v\u00f4 \u0111\u1ecbnh h\u00ecnh. \u0110\u00e2y l\u00e0 tr\u1ea1ng th\u00e1i c\u1ee7a ch\u1ea5t r\u1eafn n\u01a1i c\u00e1c ph\u00e2n t\u1eed thi\u1ebfu tr\u1eadt t\u1ef1 d\u00e0i h\u1ea1n c\u1ee7a m\u1ed9t ch\u1ea5t r\u1eafn tinh th\u1ec3.<\/div>\n
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H\u00e3y t\u01b0\u1edfng t\u01b0\u1ee3ng m\u1ed9t ch\u1ea5t r\u1eafn tinh th\u1ec3, nh\u01b0 m\u1ed9t vi\u00ean \u0111\u01b0\u1eddng, gi\u1ed1ng nh\u01b0 m\u1ed9t b\u1ee9c t\u01b0\u1eddng g\u1ea1ch c\u00f3 tr\u1eadt t\u1ef1. M\u1ed9t ch\u1ea5t r\u1eafn v\u00f4 \u0111\u1ecbnh h\u00ecnh, nh\u01b0 m\u1ed9t t\u1ea5m k\u00ednh c\u1eeda s\u1ed5, c\u00f3 c\u00f9ng th\u00e0nh ph\u1ea7n. Nh\u01b0ng ch\u00fang b\u1ecb \u0111\u00f4ng c\u1ee9ng trong m\u1ed9t s\u1eafp x\u1ebfp ng\u1eabu nhi\u00ean, kh\u00f4ng c\u00f3 tr\u1eadt t\u1ef1. S\u1ef1 thi\u1ebfu tr\u1eadt t\u1ef1 c\u1ee7a m\u1ea1ng tinh th\u1ec3 n\u00e0y t\u1ea1o n\u00ean \u0111\u1eb7c \u0111i\u1ec3m gi\u00f2n \u201cr\u1eafc\u201d v\u00e0 c\u1ea3m gi\u00e1c m\u01b0\u1ee3t m\u00e0 trong mi\u1ec7ng c\u1ee7a k\u1eb9o b\u01a1 c\u1ee9ng.<\/div>\n
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Ch\u00fang t\u00f4i \u0111\u1ea1t \u0111\u01b0\u1ee3c tr\u1ea1ng th\u00e1i n\u00e0y th\u00f4ng qua l\u00e0m l\u1ea1nh nhanh. B\u1eb1ng c\u00e1ch gi\u1ea3m nhi\u1ec7t \u0111\u1ed9 c\u1ee7a sirup \u0111\u01b0\u1eddng c\u00f4 \u0111\u1eb7c nhanh ch\u00f3ng, ch\u00fang t\u00f4i t\u1eeb ch\u1ed1i c\u00e1c ph\u00e2n t\u1eed sucrose th\u1eddi gian v\u00e0 n\u0103ng l\u01b0\u1ee3ng c\u1ea7n thi\u1ebft \u0111\u1ec3 s\u1eafp x\u1ebfp th\u00e0nh c\u1ea5u tr\u00fac tinh th\u1ec3 c\u00f3 tr\u1eadt t\u1ef1. \u0110\u1ed9 \u0111\u1eb7c c\u1ee7a h\u1ed7n h\u1ee3p t\u0103ng l\u00ean \u0111\u00e1ng k\u1ec3 cho \u0111\u1ebfn khi n\u00f3 tr\u1edf th\u00e0nh m\u1ed9t ch\u1ea5t r\u1eafn th\u1ef1c s\u1ef1. \u0110i\u1ec1u n\u00e0y gi\u1eef c\u00e1c ph\u00e2n t\u1eed trong tr\u1ea1ng th\u00e1i l\u1ecfng r\u1ed1i lo\u1ea1n nh\u01b0 th\u1ec3.<\/div>\n
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Ki\u1ec3m so\u00e1t \u0111\u1ed9 nh\u1edbt trong n\u1ea5u \u0103n<\/h3>\n
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\u0110\u1ed9 nh\u1edbt, ho\u1eb7c kh\u1ea3 n\u0103ng ch\u1ed1ng ch\u1ea3y, l\u00e0 m\u1ed9t \u0111\u1eb7c t\u00ednh v\u1eadt l\u00fd quan tr\u1ecdng thay \u0111\u1ed5i \u0111\u00e1ng k\u1ec3 trong qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t k\u1eb9o b\u01a1 c\u1ee9ng. Khi n\u01b0\u1edbc bay h\u01a1i v\u00e0 n\u1ed3ng \u0111\u1ed9 \u0111\u01b0\u1eddng t\u0103ng l\u00ean, \u0111\u1ed9 \u0111\u1eb7c c\u1ee7a sirup t\u0103ng theo c\u1ea5p s\u1ed1 nh\u00e2n.<\/div>\n
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S\u1ef1 t\u0103ng \u0111\u1ed9 \u0111\u1eb7c n\u00e0y c\u00f3 nhi\u1ec1u t\u00e1c \u0111\u1ed9ng. N\u00f3 l\u00e0m gi\u1ea3m hi\u1ec7u qu\u1ea3 truy\u1ec1n nhi\u1ec7t. \u0110i\u1ec1u n\u00e0y \u0111\u00f2i h\u1ecfi ph\u1ea3i khu\u1ea5y li\u00ean t\u1ee5c \u0111\u1ec3 tr\u00e1nh ch\u00e1y c\u1ee5c b\u1ed9 \u1edf \u0111\u00e1y n\u1ed3i.<\/div>\n
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H\u01a1n n\u1eefa, \u0111\u1ed9 \u0111\u1eb7c cao gi\u1eef h\u01a1i n\u01b0\u1edbc v\u00e0 c\u00e1c h\u1ee3p ch\u1ea5t d\u1ec5 bay h\u01a1i kh\u00e1c sinh ra trong qu\u00e1 tr\u00ecnh ph\u1ea3n \u1ee9ng Maillard v\u00e0 caramel h\u00f3a. \u0110i\u1ec1u n\u00e0y g\u00f3p ph\u1ea7n v\u00e0o \u0111\u1ed9 x\u1ed1p v\u00e0 k\u1ebft c\u1ea5u cu\u1ed1i c\u00f9ng c\u1ee7a k\u1eb9o b\u01a1 c\u1ee9ng. Ki\u1ec3m so\u00e1t t\u1ed1c \u0111\u1ed9 l\u00e0m n\u00f3ng cho ph\u00e9p t\u0103ng \u0111\u1ed9 \u0111\u1eb7c m\u1ed9t c\u00e1ch ki\u1ec3m so\u00e1t h\u01a1n. \u0110i\u1ec1u n\u00e0y d\u1eabn \u0111\u1ebfn s\u1ea3n ph\u1ea9m cu\u1ed1i c\u00f9ng \u0111\u1ed3ng nh\u1ea5t h\u01a1n.<\/div>\n
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C\u00e1c y\u1ebfu t\u1ed1 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1ed9 c\u1ee9ng cu\u1ed1i c\u00f9ng<\/h3>\n
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\u0110\u1ed9 c\u1ee9ng cu\u1ed1i c\u00f9ng, hay \u201cr\u1eafc\u201d, c\u1ee7a k\u1eb9o b\u01a1 c\u1ee9ng \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1edfi nhi\u1ec1u y\u1ebfu t\u1ed1 li\u00ean k\u1ebft. Y\u1ebfu t\u1ed1 quan tr\u1ecdng nh\u1ea5t l\u00e0 nhi\u1ec7t \u0111\u1ed9 n\u1ea5u cu\u1ed1i c\u00f9ng. Nhi\u1ec7t \u0111\u1ed9 cao h\u01a1n c\u00f3 ngh\u0129a l\u00e0 c\u00f2n \u00edt n\u01b0\u1edbc c\u00f2n l\u1ea1i v\u00e0 dung d\u1ecbch \u0111\u01b0\u1eddng c\u00f4 \u0111\u1eb7c h\u01a1n. \u0110i\u1ec1u n\u00e0y d\u1eabn \u0111\u1ebfn s\u1ea3n ph\u1ea9m cu\u1ed1i c\u00f9ng c\u1ee9ng h\u01a1n.<\/div>\n
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T\u1ef7 l\u1ec7 sucrose so v\u1edbi \u0111\u01b0\u1eddng invert c\u0169ng r\u1ea5t quan tr\u1ecdng. Nh\u01b0 \u0111\u00e3 th\u1ea3o lu\u1eadn, \u0111\u01b0\u1eddng invert t\u1eeb ng\u00f4 ho\u1eb7c siro glucose ng\u0103n ch\u1eb7n qu\u00e1 tr\u00ecnh k\u1ebft tinh. Ch\u00fang c\u0169ng c\u00f3 t\u00e1c d\u1ee5ng l\u00e0m m\u1ec1m. T\u1ef7 l\u1ec7 \u0111\u01b0\u1eddng invert cao h\u01a1n s\u1ebd t\u1ea1o ra k\u1eb9o m\u1ec1m h\u01a1n, d\u1ec5 u\u1ed1n h\u01a1n m\u1ed9t ch\u00fat, ngay c\u1ea3 khi n\u1ea5u \u0111\u1ebfn c\u00f9ng nhi\u1ec7t \u0111\u1ed9.<\/div>\n
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Cu\u1ed1i c\u00f9ng, c\u00e1c ch\u1ea5t r\u1eafn kh\u00f4ng ch\u1ee9a \u0111\u01b0\u1eddng \u0111\u00f3ng vai tr\u00f2. C\u00e1c protein v\u00e0 ch\u1ea5t b\u00e9o t\u1eeb c\u00e1c ch\u1ea5t r\u1eafn s\u1eefa g\u00e2y c\u1ea3n tr\u1edf v\u1eadt l\u00fd qu\u00e1 tr\u00ecnh h\u00ecnh th\u00e0nh m\u1ed9t m\u1ea1ng l\u01b0\u1edbi k\u00ednh \u0111\u01b0\u1eddng ho\u00e0n h\u1ea3o<\/a> \u0110i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 l\u00e0m m\u1ec1m nh\u1eb9 k\u1ebft c\u1ea5u v\u00e0 ng\u0103n k\u1eb9o b\u01a1 c\u1ee9ng qu\u00e1 c\u1ee9ng ho\u1eb7c s\u1eafc n\u00e9t. \u0110i\u1ec1u n\u00e0y g\u00f3p ph\u1ea7n t\u1ea1o ra tr\u1ea3i nghi\u1ec7m \u0103n u\u1ed1ng d\u1ec5 ch\u1ecbu h\u01a1n.<\/div>\n
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H\u01b0\u1edbng d\u1eabn x\u1eed l\u00fd s\u1ef1 c\u1ed1 k\u1ef9 thu\u1eadt<\/h2>\n
\"t\u00e1o<\/a><\/div>\n

Ch\u1ea9n \u0111o\u00e1n c\u00f3 h\u1ec7 th\u1ed1ng<\/h3>\n
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Khi m\u1ed9t m\u1ebb k\u1eb9o b\u01a1 c\u1ee9ng th\u1ea5t b\u1ea1i, kh\u00f4ng ph\u1ea3i do xui x\u1ebbo. \u0110\u00f3 l\u00e0 do m\u1ed9t l\u1ed7i c\u1ee5 th\u1ec3, c\u00f3 th\u1ec3 x\u00e1c \u0111\u1ecbnh trong ki\u1ec3m so\u00e1t quy tr\u00ecnh ho\u1eb7c ch\u1ee9c n\u0103ng th\u00e0nh ph\u1ea7n. Ph\u01b0\u01a1ng ph\u00e1p ch\u1ea9n \u0111o\u00e1n c\u00f3 h\u1ec7 th\u1ed1ng li\u00ean k\u1ebft l\u1ed7i quan s\u00e1t \u0111\u01b0\u1ee3c tr\u1edf l\u1ea1i nguy\u00ean nh\u00e2n khoa h\u1ecdc c\u1ee7a n\u00f3.<\/div>\n
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B\u1eb1ng c\u00e1ch hi\u1ec3u r\u00f5 h\u00f3a h\u1ecdc v\u00e0 v\u1eadt l\u00fd \u0111ang di\u1ec5n ra, ch\u00fang ta c\u00f3 th\u1ec3 chuy\u1ec3n t\u1eeb vi\u1ec7c ch\u1ec9 \u0111\u01a1n gi\u1ea3n v\u1ee9t b\u1ecf m\u1ebb th\u1ea5t b\u1ea1i sang hi\u1ec3u l\u00fd do t\u1ea1i sao n\u00f3 th\u1ea5t b\u1ea1i. Ki\u1ebfn th\u1ee9c n\u00e0y cho ph\u00e9p th\u1ef1c hi\u1ec7n c\u00e1c h\u00e0nh \u0111\u1ed9ng s\u1eeda ch\u1eefa ch\u00ednh x\u00e1c. N\u00f3 ng\u0103n ch\u1eb7n vi\u1ec7c l\u1eb7p l\u1ea1i c\u00f9ng m\u1ed9t sai l\u1ea7m. H\u01b0\u1edbng d\u1eabn sau \u0111\u00e2y cung c\u1ea5p khung \u0111\u1ec3 qu\u00e1 tr\u00ecnh ch\u1ea9n \u0111o\u00e1n n\u00e0y.<\/div>\n
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H\u01b0\u1edbng d\u1eabn x\u1eed l\u00fd l\u1ed7i ph\u1ed5 bi\u1ebfn<\/h3>\n
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Ma tr\u1eadn n\u00e0y ph\u00e1c th\u1ea3o c\u00e1c l\u1ed7i ph\u1ed5 bi\u1ebfn, nguy\u00ean nh\u00e2n khoa h\u1ecdc c\u00f3 th\u1ec3 x\u1ea3y ra c\u1ee7a ch\u00fang, v\u00e0 c\u00e1c h\u00e0nh \u0111\u1ed9ng c\u1ee5 th\u1ec3 c\u1ea7n thi\u1ebft \u0111\u1ec3 s\u1eeda ch\u1eefa trong c\u00e1c m\u1ebb ti\u1ebfp theo. S\u1eed d\u1ee5ng n\u00f3 nh\u01b0 m\u1ed9t c\u00f4ng c\u1ee5 \u0111\u1ec3 tinh ch\u1ec9nh quy tr\u00ecnh c\u1ee7a b\u1ea1n v\u00e0 \u0111\u1ea1t \u0111\u01b0\u1ee3c k\u1ebft qu\u1ea3 nh\u1ea5t qu\u00e1n, ch\u1ea5t l\u01b0\u1ee3ng cao.<\/div>\n
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\n\n\n\n\n\n<\/colgroup>\n\n\n\n\n\n\n\n
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L\u1ed7i<\/div>\n<\/td>\n
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Tri\u1ec7u ch\u1ee9ng c\u00f3 th\u1ec3 quan s\u00e1t \u0111\u01b0\u1ee3c<\/div>\n<\/td>\n
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Nguy\u00ean nh\u00e2n khoa h\u1ecdc c\u00f3 kh\u1ea3 n\u0103ng x\u1ea3y ra<\/div>\n<\/td>\n
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H\u00e0nh \u0111\u1ed9ng kh\u1eafc ph\u1ee5c \/ Ph\u00f2ng ng\u1eeba<\/div>\n<\/td>\n<\/tr>\n
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K\u1ebft c\u1ea5u v\u00f3n c\u1ee5c ho\u1eb7c c\u00f3 \u0111\u01b0\u1eddng k\u00ednh nh\u01b0 \u0111\u01b0\u1eddng k\u00ednh \u0111\u01b0\u1eddng<\/div>\n<\/td>\n
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K\u1ebft c\u1ea5u c\u00e1t ho\u1eb7c c\u00f3 \u0111\u01b0\u1eddng k\u00ednh nh\u01b0 \u0111\u01b0\u1eddng k\u00ednh \u0111\u01b0\u1eddng tr\u00ean l\u01b0\u1ee1i. V\u1ebb ngo\u00e0i x\u1ec9n m\u00e0u.<\/div>\n<\/td>\n
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Tinh th\u1ec3 sucrose xu\u1ea5t hi\u1ec7n s\u1edbm ho\u1eb7c kh\u00f4ng ki\u1ec3m so\u00e1t \u0111\u01b0\u1ee3c.<\/div>\n<\/td>\n
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Kh\u00f4ng khu\u1ea5y sau kho\u1ea3ng 250\u00b0F (121\u00b0C). \u0110\u1ea3m b\u1ea3o \u201cch\u1ea5t \u0111i\u1ec1u ch\u1ec9nh\u201d (sir\u00f4 ng\u00f4) \u0111\u01b0\u1ee3c \u0111o ch\u00ednh x\u00e1c. L\u00e0m s\u1ea1ch c\u00e1c th\u00e0nh c\u1ee7a n\u1ed3i b\u1eb1ng b\u00e0n ch\u1ea3i \u01b0\u1edbt.<\/div>\n<\/td>\n<\/tr>\n
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K\u1eb9o m\u1ec1m ho\u1eb7c c\u00f3 d\u1ea7u t\u00e1ch ra<\/div>\n<\/td>\n
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C\u00f3 v\u0169ng d\u1ea7u tr\u00ean b\u1ec1 m\u1eb7t; c\u1ea3m gi\u00e1c nh\u1edbt.<\/div>\n<\/td>\n
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H\u1ed7n h\u1ee3p \u0111\u01b0\u1eddng\/d\u1ea7u \u0111\u00e3 \u201cb\u1ecb v\u1ee1\u201d.<\/div>\n<\/td>\n
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Th\u00eam m\u1ed9t l\u01b0\u1ee3ng nh\u1ecf n\u01b0\u1edbc n\u00f3ng v\u00e0 khu\u1ea5y m\u1ea1nh \u0111\u1ec3 t\u00e1i t\u1ea1o emulsification. Trong t\u01b0\u01a1ng lai, s\u1eed d\u1ee5ng ch\u1ea5t nh\u0169 h\u00f3a (lecithin) v\u00e0 \u0111\u1ea3m b\u1ea3o nhi\u1ec7t \u0111\u1ed9 gia nhi\u1ec7t t\u1eeb t\u1eeb, \u0111\u1ec1u \u0111\u1eb7n.<\/div>\n<\/td>\n<\/tr>\n
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K\u1eb9o qu\u00e1 m\u1ec1m \/ d\u1ebbo<\/div>\n<\/td>\n
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Kh\u00f4ng \u201ct\u1ea1o ti\u1ebfng r\u1eafc\u201d khi ngu\u1ed9i; u\u1ed1n cong thay v\u00ec g\u00e3y.<\/div>\n<\/td>\n
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Nhi\u1ec7t \u0111\u1ed9 cu\u1ed1i c\u00f9ng n\u1ea5u qu\u00e1 th\u1ea5p. H\u00e0m l\u01b0\u1ee3ng n\u01b0\u1edbc qu\u00e1 cao.<\/div>\n<\/td>\n
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L\u00f4 h\u00e0ng kh\u00f4ng th\u1ec3 s\u1eeda ch\u1eefa. \u0110\u1ed1i v\u1edbi l\u00f4 ti\u1ebfp theo, n\u1ea5u \u0111\u1ebfn nhi\u1ec7t \u0111\u1ed9 cu\u1ed1i cao h\u01a1n (giai \u0111o\u1ea1n c\u1ee9ng). Hi\u1ec7u ch\u1ec9nh nhi\u1ec7t k\u1ebf c\u1ee7a b\u1ea1n.<\/div>\n<\/td>\n<\/tr>\n
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K\u1eb9o qu\u00e1 c\u1ee9ng \/ gi\u00f2n<\/div>\n<\/td>\n
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D\u1ec5 v\u1ee1, c\u00f3 th\u1ec3 s\u1eafc nh\u1ecdn.<\/div>\n<\/td>\n
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Nhi\u1ec7t \u0111\u1ed9 cu\u1ed1i c\u00f9ng n\u1ea5u qu\u00e1 cao.<\/div>\n<\/td>\n
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L\u00f4 h\u00e0ng kh\u00f4ng th\u1ec3 s\u1eeda ch\u1eefa. \u0110\u1ed1i v\u1edbi l\u00f4 ti\u1ebfp theo, r\u00fat kh\u1ecfi nhi\u1ec7t \u1edf nhi\u1ec7t \u0111\u1ed9 th\u1ea5p h\u01a1n trong ph\u1ea1m vi c\u1ee9ng.<\/div>\n<\/td>\n<\/tr>\n
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V\u1ecb ch\u00e1y ho\u1eb7c \u0111\u1eafng<\/div>\n<\/td>\n
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V\u1ecb \u0111\u1eafng, ch\u00e1y, m\u00e0u qu\u00e1 t\u1ed1i.<\/div>\n<\/td>\n
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Nhi\u1ec7t kh\u00f4ng \u0111\u1ec1u ho\u1eb7c h\u1ed7n h\u1ee3p kh\u00f4ng khu\u1ea5y g\u00e2y ch\u00e1y c\u1ee5c b\u1ed9.<\/div>\n<\/td>\n
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S\u1eed d\u1ee5ng n\u1ed3i \u0111\u00e1y d\u00e0y \u0111\u1ec3 ph\u00e2n ph\u1ed1i nhi\u1ec7t \u0111\u1ec1u. Li\u00ean t\u1ee5c khu\u1ea5y \u0111\u1ec1u v\u00e0 k\u1ef9 l\u01b0\u1ee1ng. Gi\u1ea3m nhi\u1ec7t n\u1ebfu qu\u00e1 tr\u00ecnh n\u00e2u nhanh qu\u00e1.<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
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K\u1ebft lu\u1eadn: Khoa h\u1ecdc th\u00e0nh Ngh\u1ec7 thu\u1eadt<\/h2>\n
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T\u1ed5ng k\u1ebft c\u00e1c nguy\u00ean t\u1eafc ch\u00ednh<\/h3>\n
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Vi\u1ec7c s\u1ea3n xu\u1ea5t k\u1eb9o b\u01a1 c\u1ee9ng ho\u00e0n h\u1ea3o l\u00e0 minh ch\u1ee9ng cho khoa h\u1ecdc \u1ee9ng d\u1ee5ng. Ch\u00fang ta \u0111\u00e3 th\u1ea5y th\u00e0nh c\u00f4ng ph\u1ee5 thu\u1ed9c v\u00e0o vi\u1ec7c qu\u1ea3n l\u00fd ch\u00ednh x\u00e1c c\u00e1c nguy\u00ean t\u1eafc c\u01a1 b\u1ea3n. N\u00f3 \u0111\u00f2i h\u1ecfi s\u1ef1 t\u00f4n tr\u1ecdng s\u00e2u s\u1eafc vai tr\u00f2 c\u1ee7a ph\u1ea3n \u1ee9ng Maillard v\u00e0 caramel h\u00f3a trong vi\u1ec7c x\u00e2y d\u1ef1ng h\u01b0\u01a1ng v\u1ecb ph\u1ee9c t\u1ea1p.<\/div>\n
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Th\u00e0nh c\u00f4ng c\u00f2n \u0111\u00f2i h\u1ecfi ki\u1ec3m so\u00e1t ch\u1eb7t ch\u1ebd tr\u1ea1ng th\u00e1i v\u1eadt l\u00fd c\u1ee7a \u0111\u01b0\u1eddng. \u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 ng\u0103n ch\u1eb7n k\u1ebft tinh kh\u00f4ng mong mu\u1ed1n b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng c\u00e1c ch\u1ea5t \u0111i\u1ec1u ch\u1ec9nh v\u00e0 x\u1eed l\u00fd c\u1ea9n th\u1eadn. Cu\u1ed1i c\u00f9ng, n\u00f3 d\u1ef1a tr\u00ean vi\u1ec7c t\u1ea1o ra v\u00e0 duy tr\u00ec m\u1ed9t emulsions \u1ed5n \u0111\u1ecbnh c\u1ee7a ch\u1ea5t b\u00e9o v\u00e0 sirup \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c c\u1ea3m gi\u00e1c m\u01b0\u1ee3t m\u00e0 \u0111\u1eadm \u0111\u00e0 mong mu\u1ed1n. L\u00e0m ch\u1ee7 c\u00e1c nguy\u00ean t\u1eafc n\u00e0y bi\u1ebfn qu\u00e1 tr\u00ecnh t\u1eeb m\u1ed9t tr\u00f2 ch\u01a1i \u0111o\u00e1n m\u00f2 th\u00e0nh m\u1ed9t k\u1ef9 thu\u1eadt c\u00f3 th\u1ec3 l\u1eb7p l\u1ea1i.<\/div>\n
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S\u1ef1 T\u1ed5ng h\u1ee3p c\u1ee7a Ngh\u1ec7 thu\u1eadt th\u1ee7 c\u00f4ng<\/h3>\n
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Trong khi to\u00e0n b\u1ed9 qu\u00e1 tr\u00ecnh d\u1ef1a tr\u00ean h\u00f3a h\u1ecdc v\u00e0 v\u1eadt l\u00fd, vi\u1ec7c \u00e1p d\u1ee5ng c\u00e1c nguy\u00ean t\u1eafc n\u00e0y l\u00e0 n\u01a1i ngh\u1ec7 thu\u1eadt v\u00e0 th\u1ee7 c\u00f4ng xu\u1ea5t hi\u1ec7n. Khoa h\u1ecdc cung c\u1ea5p khung n\u1ec1n, nh\u01b0ng ng\u01b0\u1eddi l\u00e0m k\u1eb9o cung c\u1ea5p \u00fd \u0111\u1ecbnh. Quy\u1ebft \u0111\u1ecbnh \u0111i\u1ec3m ch\u00ednh x\u00e1c \u0111\u1ec3 d\u1eebng n\u1ea5u \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c s\u1ef1 c\u00e2n b\u1eb1ng c\u1ee5 th\u1ec3 gi\u1eefa c\u00e1c ghi ch\u00fa rang c\u1ee7a Maillard v\u00e0 \u00e2m h\u01b0\u1edfng caramel h\u1ea1t l\u00e0 m\u1ed9t l\u1ef1a ch\u1ecdn ngh\u1ec7 thu\u1eadt. Nh\u01b0ng n\u00f3 d\u1ef1a tr\u00ean hi\u1ec3u bi\u1ebft khoa h\u1ecdc.<\/div>\n
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L\u1eddi cu\u1ed1i c\u00f9ng \u0111\u1ea7y s\u1ee9c m\u1ea1nh<\/h3>\n
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Ch\u00fang t\u00f4i khuy\u1ebfn kh\u00edch b\u1ea1n xem ki\u1ebfn th\u1ee9c k\u1ef9 thu\u1eadt n\u00e0y kh\u00f4ng ph\u1ea3i nh\u01b0 m\u1ed9t b\u1ed9 quy t\u1eafc c\u1ee9ng nh\u1eafc, m\u00e0 nh\u01b0 m\u1ed9t b\u1ed9 c\u00f4ng c\u1ee5 m\u1ea1nh m\u1ebd. S\u1eed d\u1ee5ng hi\u1ec3u bi\u1ebft v\u1ec1 khoa h\u1ecdc n\u1ec1n t\u1ea3ng n\u00e0y \u0111\u1ec3 th\u1eed nghi\u1ec7m t\u1ef1 tin. \u0110i\u1ec1u ch\u1ec9nh t\u1ef7 l\u1ec7 nguy\u00ean li\u1ec7u. Kh\u00e1m ph\u00e1 c\u00e1c ngu\u1ed3n s\u1eefa kh\u00e1c nhau. Thao t\u00e1c th\u1eddi gian v\u00e0 nhi\u1ec7t \u0111\u1ed9 n\u1ea5u v\u1edbi m\u1ee5c \u0111\u00edch r\u00f5 r\u00e0ng. B\u1eb1ng c\u00e1ch l\u00e0m ch\u1ee7 khoa h\u1ecdc, b\u1ea1n m\u1edf ra t\u1ef1 do s\u00e1ng t\u1ea1o ra nh\u1eefng mi\u1ebfng k\u1eb9o b\u01a1 kh\u00f4ng ch\u1ec9 ho\u00e0n h\u1ea3o v\u1ec1 m\u1eb7t k\u1ef9 thu\u1eadt m\u00e0 c\u00f2n mang \u0111\u1eadm d\u1ea5u \u1ea5n ri\u00eang c\u1ee7a b\u1ea1n.<\/div>\n<\/div>\n
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