{"id":8685,"date":"2025-10-02T02:18:02","date_gmt":"2025-10-02T02:18:02","guid":{"rendered":"https:\/\/www.jymachinetech.com\/?p=8685"},"modified":"2025-10-03T13:53:43","modified_gmt":"2025-10-03T13:53:43","slug":"the-science-of-sweet-success-a-technical-deep-dive-into-candy-molding","status":"publish","type":"post","link":"https:\/\/www.jymachinetech.com\/vi\/the-science-of-sweet-success-a-technical-deep-dive-into-candy-molding\/","title":{"rendered":"Khoa h\u1ecdc c\u1ee7a th\u00e0nh c\u00f4ng ng\u1ecdt ng\u00e0o: Ph\u00e2n t\u00edch k\u1ef9 thu\u1eadt s\u00e2u v\u1ec1 khu\u00f4n k\u1eb9o"},"content":{"rendered":"
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Khoa H\u1ecdc c\u1ee7a Th\u00e0nh C\u00f4ng Ng\u1ecdt Ng\u00e0o: Ph\u00e2n T\u00edch K\u1ef9 Thu\u1eadt v\u1ec1 \u0110\u00fac K\u1eb9o<\/h2>\n
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Khoa H\u1ecdc B\u00ed \u1ea8n<\/h2>\n
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M\u1ed9t mi\u1ebfng k\u1eb9o \u0111\u01b0\u1ee3c \u0111\u00fac ho\u00e0n h\u1ea3o tr\u00f4ng c\u00f3 v\u1ebb \u0111\u01a1n gi\u1ea3n. N\u00f3 ch\u1ec9 l\u00e0 m\u1ed9t bi\u1ec3u t\u01b0\u1ee3ng nh\u1ecf c\u1ee7a s\u1ef1 ng\u1ecdt ng\u00e0o. Nh\u01b0ng h\u00ecnh d\u1ea1ng ho\u00e0n h\u1ea3o c\u1ee7a n\u00f3 xu\u1ea5t ph\u00e1t t\u1eeb s\u1ef1 pha tr\u1ed9n ph\u1ee9c t\u1ea1p c\u1ee7a v\u1eadt l\u00fd v\u00e0 h\u00f3a h\u1ecdc.<\/div>\n
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Vi\u1ec7c l\u00e0m ra mi\u1ebfng k\u1eb9o ho\u00e0n h\u1ea3o kh\u00f4ng ph\u1ea3i l\u00e0 ngh\u1ec7 thu\u1eadt. \u0110\u00f3 l\u00e0 v\u1ec1 khoa h\u1ecdc \u1ee9ng d\u1ee5ng. Ng\u00e0nh n\u00e0y \u0111\u00f2i h\u1ecfi ki\u1ec3m so\u00e1t c\u00e1c l\u1ef1c l\u01b0\u1ee3ng v\u00f4 h\u00ecnh chi ph\u1ed1i v\u1eadt ch\u1ea5t.<\/div>\n
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Ch\u00fang ta s\u1ebd kh\u00e1m ph\u00e1<\/a> nh\u1eefng tr\u1ee5 c\u1ed9t k\u1ef9 thu\u1eadt \u0111\u1ecbnh ngh\u0129a th\u00e0nh c\u00f4ng trong \u0111\u00fac k\u1eb9o. \u0110\u00f3 l\u00e0 nhi\u1ec7t \u0111\u1ed9ng l\u1ef1c h\u1ecdc, k\u1ebft tinh, \u0111\u1ed9ng l\u1ef1c ch\u1ea5t l\u1ecfng v\u00e0 khoa h\u1ecdc v\u1eadt li\u1ec7u.<\/div>\n
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B\u00e0i vi\u1ebft n\u00e0y v\u01b0\u1ee3t ra ngo\u00e0i c\u00e1c c\u00f4ng th\u1ee9c \u0111\u01a1n gi\u1ea3n. Ch\u00fang t\u00f4i mu\u1ed1n cung c\u1ea5p cho b\u1ea1n ki\u1ebfn th\u1ee9c k\u1ef9 thu\u1eadt \u0111\u1ec3 ch\u1ea9n \u0111o\u00e1n v\u1ea5n \u0111\u1ec1, c\u1ea3i thi\u1ec7n \u0111\u1ed9 nh\u1ea5t qu\u00e1n v\u00e0 \u0111\u1ea1t \u0111\u01b0\u1ee3c k\u1ebft qu\u1ea3 chuy\u00ean nghi\u1ec7p trong m\u1ecdi d\u1ef1 \u00e1n \u0111\u00fac k\u1eb9o.<\/div>\n
\"k\u1eb9o,<\/a><\/div>\n
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Nguy\u00ean T\u1eafc C\u1ed1t L\u00f5i<\/h2>\n
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\u0110\u1ec3 th\u00e0nh th\u1ea1o \u0111\u00fac k\u1eb9o, b\u1ea1n c\u1ea7n hi\u1ec3u c\u00e1c kh\u00e1i ni\u1ec7m khoa h\u1ecdc c\u01a1 b\u1ea3n \u0111\u1eb1ng sau to\u00e0n b\u1ed9 qu\u00e1 tr\u00ecnh. \u0110\u00e2y l\u00e0 n\u1ec1n t\u1ea3ng l\u00fd thuy\u1ebft cho t\u1ea5t c\u1ea3 c\u00f4ng vi\u1ec7c th\u1ef1c h\u00e0nh c\u1ee7a b\u1ea1n.<\/div>\n
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Hi\u1ec3u c\u00e1c nguy\u00ean t\u1eafc n\u00e0y gi\u1ea3i th\u00edch t\u1ea1i sao m\u1ed9t s\u1ed1 b\u01b0\u1edbc l\u1ea1i quan tr\u1ecdng. B\u1ea1n s\u1ebd h\u1ecdc \u0111\u01b0\u1ee3c l\u00fd do \u0111\u1eb1ng sau c\u00e1ch th\u1ef1c hi\u1ec7n. \u0110i\u1ec1u n\u00e0y gi\u00fap b\u1ea1n t\u1ef1 tin \u0111i\u1ec1u ch\u1ec9nh c\u00f4ng th\u1ee9c v\u00e0 x\u1eed l\u00fd s\u1ef1 c\u1ed1.<\/div>\n
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Nhi\u1ec7t v\u00e0 Nhi\u1ec7t \u0110\u1ed9ng L\u1ef1c H\u1ecdc<\/h3>\n
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Nhi\u1ec7t l\u00e0 \u0111\u1ed9ng l\u1ef1c th\u00fac \u0111\u1ea9y qu\u00e1 tr\u00ecnh bi\u1ebfn \u0111\u1ed5i c\u1ee7a k\u1eb9o. C\u00e1ch n\u00f3 di chuy\u1ec3n t\u1eeb n\u1ed3i sang k\u1eb9o, r\u1ed3i t\u1eeb k\u1eb9o sang khu\u00f4n, tu\u00e2n theo c\u00e1c lu\u1eadt d\u1eabn nhi\u1ec7t v\u00e0 \u0111\u1ed1i l\u01b0u.<\/div>\n
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B\u1ea1n ph\u1ea3i ki\u1ec3m so\u00e1t nhi\u1ec7t \u0111\u1ed9 ch\u00ednh x\u00e1c \u0111\u1ec3 c\u00f3 c\u1ea5u tr\u00fac v\u00e0 ho\u00e0n thi\u1ec7n \u0111\u00fang. M\u1ed7i s\u1ef1 thay \u0111\u1ed5i pha li\u00ean quan \u0111\u1ebfn chuy\u1ec3n giao n\u0103ng l\u01b0\u1ee3ng. \u0110i\u1ec1u n\u00e0y g\u1ecdi l\u00e0 nhi\u1ec7t l\u01b0\u1ee3ng ng\u1ea5m c\u1ee7a qu\u00e1 tr\u00ecnh k\u1ebft tinh, v\u00e0 b\u1ea1n ph\u1ea3i qu\u1ea3n l\u00fd n\u00f3.<\/div>\n
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Thay \u0111\u1ed5i nhi\u1ec7t \u0111\u1ed9 \u0111\u1ed9t ng\u1ed9t g\u00e2y s\u1ed1c nhi\u1ec7t. \u0110\u00f3 l\u00e0 l\u00fd do t\u1ea1i sao k\u1eb9o b\u1ecb n\u1ee9t, tr\u00f4ng x\u1ec9n m\u00e0u ho\u1eb7c c\u00f3 k\u1ebft c\u1ea5u k\u00e9m. V\u1eadt li\u1ec7u co l\u1ea1i kh\u00f4ng \u0111\u1ec1u.<\/div>\n
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\u0110\u1ed9ng l\u1ef1c ch\u1ea5t l\u1ecfng<\/h3>\n
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\u0110\u1ed9 nh\u1edbt l\u00e0 \u0111\u1ed9 \u0111\u1eb7c c\u1ee7a k\u1eb9o n\u00f3ng ch\u1ea3y c\u1ee7a b\u1ea1n. \u0110i\u1ec1u n\u00e0y r\u1ea5t quan tr\u1ecdng trong qu\u00e1 tr\u00ecnh \u0111\u00fac khu\u00f4n. N\u00f3 ki\u1ec3m so\u00e1t c\u00e1ch ch\u1ea5t l\u1ecfng ho\u1ea1t \u0111\u1ed9ng khi \u0111i\u1ec1n v\u00e0o khu\u00f4n.<\/div>\n
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Nhi\u1ec1u y\u1ebfu t\u1ed1 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1ed9 nh\u1edbt. Nhi\u1ec7t \u0111\u1ed9 c\u00f3 m\u1ed1i quan h\u1ec7 ngh\u1ecbch \u0111\u1ea3o \u2013 khi t\u0103ng l\u00ean, \u0111\u1ed9 nh\u1edbt gi\u1ea3m xu\u1ed1ng. H\u1ed7n h\u1ee3p \u0111\u01b0\u1eddng, ch\u1ea5t b\u00e9o v\u00e0 ch\u1ea5t nh\u0169 h\u00f3a c\u0169ng r\u1ea5t quan tr\u1ecdng.<\/div>\n
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Khu\u1ea5y c\u00f3 th\u1ec3 thay \u0111\u1ed5i \u0111\u1ed9 \u0111\u1eb7c. M\u1ed9t s\u1ed1 h\u1ed7n h\u1ee3p tr\u1edf n\u00ean lo\u00e3ng h\u01a1n khi khu\u1ea5y. Nh\u1eefng h\u1ed7n h\u1ee3p kh\u00e1c c\u00f3 th\u1ec3 \u0111\u1eb7c l\u1ea1i.<\/div>\n
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\u1ea2nh h\u01b0\u1edfng th\u1ef1c t\u1ebf l\u00e0 r\u1ea5t l\u1edbn. \u0110\u1ed9 nh\u1edbt \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn kh\u1ea3 n\u0103ng \u0111i\u1ec1n \u0111\u1ea7y c\u00e1c khu\u00f4n chi ti\u1ebft. N\u00f3 quy\u1ebft \u0111\u1ecbnh xem b\u1ea1n c\u00f3 b\u1eaft kh\u00ed hay kh\u00f4ng. N\u00f3 ki\u1ec3m so\u00e1t \u0111\u1ed9 d\u00e0y c\u1ee7a v\u1ecf s\u00f4 c\u00f4 la c\u1ee7a b\u1ea1n.<\/div>\n
\"nh\u00e0<\/a><\/div>\n

Ph\u00e2n T\u00edch S\u00e2u V\u1ec1 K\u1ebft Tinh<\/h2>\n
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S\u1ef1 k\u1ebft tinh l\u00e0 qu\u00e1 tr\u00ecnh h\u00f3a h\u1ecdc quan tr\u1ecdng nh\u1ea5t trong vi\u1ec7c l\u00e0m k\u1eb9o<\/a>. N\u00f3 l\u00e0 tr\u00e1i tim c\u1ee7a m\u1ecdi th\u1ee9. N\u00f3 ki\u1ec3m so\u00e1t k\u1ebft c\u1ea5u cu\u1ed1i c\u00f9ng, \u0111\u1ed9 gi\u00f2n v\u00e0 \u0111\u1ed9 b\u00f3ng c\u1ee7a c\u00e1c s\u00e1ng t\u1ea1o c\u1ee7a b\u1ea1n.<\/div>\n
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L\u00e0m ch\u1ee7 qu\u00e1 tr\u00ecnh n\u00e0y v\u00e0 b\u1ea1n ki\u1ec3m so\u00e1t xem socola c\u00f3 b\u00f3ng hay m\u1edd. B\u1ea1n quy\u1ebft \u0111\u1ecbnh xem k\u1eb9o \u0111\u01b0\u1eddng c\u00f3 trong su\u1ed1t hay v\u00f3n c\u1ee5c. Khoa h\u1ecdc ph\u00e2n t\u1eed n\u00e0y ph\u00e2n bi\u1ec7t ng\u01b0\u1eddi nghi\u1ec7p d\u01b0 v\u00e0 chuy\u00ean gia.<\/div>\n
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S\u00e1u d\u1ea1ng c\u1ee7a B\u01a1 ca cao<\/h3>\n
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C\u00e1c \u0111\u1eb7c t\u00ednh \u0111\u1ed9c \u0111\u00e1o c\u1ee7a socola \u0111\u1ebfn t\u1eeb b\u01a1 ca cao. N\u00f3 c\u00f3 t\u00ednh \u0111a h\u00ecnh. \u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 n\u00f3 c\u00f3 th\u1ec3 k\u1ebft tinh th\u00e0nh s\u00e1u c\u1ea5u tr\u00fac tinh th\u1ec3 kh\u00e1c nhau \u2013 D\u1ea1ng I \u0111\u1ebfn D\u1ea1ng VI.<\/div>\n
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C\u00e1c D\u1ea1ng I \u0111\u1ebfn IV kh\u00f4ng \u1ed5n \u0111\u1ecbnh. Ch\u00fang m\u1ec1m v\u00e0 d\u1ec5 tan ch\u1ea3y. Ch\u00fang thi\u1ebfu \u0111\u1ed9 gi\u00f2n v\u00e0 \u0111\u1ed9 b\u00f3ng h\u00e0i l\u00f2ng m\u00e0 ch\u00fang ta mong \u0111\u1ee3i t\u1eeb socola ch\u1ea5t l\u01b0\u1ee3ng cao.<\/div>\n
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M\u1ee5c ti\u00eau c\u1ee7a b\u1ea1n v\u1edbi vai tr\u00f2 l\u00e0 ng\u01b0\u1eddi l\u00e0m socola l\u00e0 t\u1ea1o ra ch\u1ec9 c\u00e1c tinh th\u1ec3 D\u1ea1ng V. Nh\u1eefng tinh th\u1ec3 n\u00e0y \u1ed5n \u0111\u1ecbnh, \u0111\u1eb7c v\u00e0 ch\u1eb7t ch\u1ebd.<\/div>\n
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S\u1ef1 kh\u00e1c bi\u1ec7t l\u00e0 kh\u00f4ng th\u1ec3 nh\u1ea7m l\u1eabn. Socola ch\u01b0a qua x\u1eed l\u00fd nhi\u1ec7t \u0111\u1ea7y c\u00e1c tinh th\u1ec3 kh\u00f4ng \u1ed5n \u0111\u1ecbnh. N\u00f3 c\u00f3 k\u1ebft c\u1ea5u s\u00e1p v\u00e0 v\u1ee5n, th\u01b0\u1eddng xu\u1ea5t hi\u1ec7n v\u1ebft loang b\u00f3ng. Thanh socola \u0111\u00e3 qua x\u1eed l\u00fd nhi\u1ec7t t\u1ed1t ch\u1ee7 y\u1ebfu ch\u1ee9a c\u00e1c tinh th\u1ec3 D\u1ea1ng V. N\u00f3 c\u00f3 \u0111\u1ed9 gi\u00f2n s\u1eafc n\u00e9t, s\u1ea1ch s\u1ebd v\u00e0 b\u00f3ng s\u00e1ng r\u1ef1c r\u1ee1.<\/div>\n
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Khoa h\u1ecdc c\u1ee7a qu\u00e1 tr\u00ecnh x\u1eed l\u00fd nhi\u1ec7t<\/h3>\n
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X\u1eed l\u00fd nhi\u1ec7t kh\u00f4ng ch\u1ec9 l\u00e0 m\u1ed9t c\u00f4ng th\u1ee9c. \u0110\u00f3 l\u00e0 m\u1ed9t qu\u00e1 tr\u00ecnh ki\u1ec3m so\u00e1t nhi\u1ec7t \u0111\u1ed9<\/a>, l\u00e0m m\u00e1t v\u00e0 khu\u1ea5y. To\u00e0n b\u1ed9 quy tr\u00ecnh n\u00e0y th\u00fac \u0111\u1ea9y s\u1ef1 h\u00ecnh th\u00e0nh c\u1ee7a c\u00e1c tinh th\u1ec3 D\u1ea1ng V \u1ed5n \u0111\u1ecbnh.<\/div>\n
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\u0110i\u1ec1u n\u00e0y x\u1ea3y ra qua ba giai \u0111o\u1ea1n. \u0110\u1ea7u ti\u00ean l\u00e0 nung ch\u1ea3y. \u0110i\u1ec1u n\u00e0y lo\u1ea1i b\u1ecf t\u1ea5t c\u1ea3 c\u00e1c c\u1ea5u tr\u00fac tinh th\u1ec3 hi\u1ec7n c\u00f3 trong socola.<\/div>\n
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Ti\u1ebfp theo l\u00e0 l\u00e0m m\u00e1t ho\u1eb7c gieo m\u1ea7m. \u1ede \u0111\u00e2y, b\u1ea1n l\u00e0m m\u00e1t socola \u0111\u1ebfn m\u1ed9t nhi\u1ec7t \u0111\u1ed9 c\u1ee5 th\u1ec3. \u0110i\u1ec1u n\u00e0y khuy\u1ebfn kh\u00edch s\u1ef1 h\u00ecnh th\u00e0nh ban \u0111\u1ea7u c\u1ee7a c\u00e1c tinh th\u1ec3 D\u1ea1ng V. B\u1ea1n c\u00f3 th\u1ec3 l\u00e0m \u0111i\u1ec1u n\u00e0y b\u1eb1ng c\u00e1ch th\u00eam socola \u0111\u00e3 qua x\u1eed l\u00fd nhi\u1ec7t (h\u1ea1t gi\u1ed1ng) ho\u1eb7c l\u00e0m m\u00e1t c\u1ea9n th\u1eadn tr\u00ean m\u1ed9t t\u1ea5m \u0111\u00e1 c\u1ea9m th\u1ea1ch.<\/div>\n
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Cu\u1ed1i c\u00f9ng, giai \u0111o\u1ea1n l\u00e0m \u1ea5m l\u1ea1i \u0111\u01b0a socola v\u1ec1 nhi\u1ec7t \u0111\u1ed9 l\u00fd t\u01b0\u1edfng \u0111\u1ec3 l\u00e0m vi\u1ec7c. \u0110i\u1ec1u n\u00e0y l\u00e0m tan ch\u1ea3y b\u1ea5t k\u1ef3 tinh th\u1ec3 kh\u00f4ng \u1ed5n \u0111\u1ecbnh c\u00f2n l\u1ea1i n\u00e0o. Ch\u1ec9 c\u00f2n l\u1ea1i c\u1ea5u tr\u00fac D\u1ea1ng V \u1ed5n \u0111\u1ecbnh. N\u00f3 c\u0169ng cung c\u1ea5p \u0111\u1ed9 ch\u1ea3y t\u1ed1i \u01b0u \u0111\u1ec3 \u0111\u1ed5 khu\u00f4n.<\/div>\n
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\n\n\n\n\n\n\n<\/colgroup>\n\n\n\n\n\n
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Lo\u1ea1i socola<\/div>\n<\/td>\n
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Nhi\u1ec7t \u0111\u1ed9 nung ch\u1ea3y<\/div>\n<\/td>\n
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Nhi\u1ec7t \u0111\u1ed9 l\u00e0m m\u00e1t\/ gieo m\u1ea7m<\/div>\n<\/td>\n
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Nhi\u1ec7t \u0111\u1ed9 l\u00e0m vi\u1ec7c<\/div>\n<\/td>\n
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Ghi ch\u00fa<\/div>\n<\/td>\n<\/tr>\n
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M\u00e0u t\u1ed1i (55-70%)<\/strong><\/div>\n<\/td>\n
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115-120\u00b0F \/ 46-49\u00b0C<\/div>\n<\/td>\n
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82-84\u00b0F \/ 28-29\u00b0C<\/div>\n<\/td>\n
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88-90\u00b0F \/ 31-32\u00b0C<\/div>\n<\/td>\n
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D\u1ec5 b\u1ecb qu\u00e1 nhi\u1ec7t. S\u1eed d\u1ee5ng nhi\u1ec7t nh\u1eb9.<\/div>\n<\/td>\n<\/tr>\n
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S\u1eefa<\/strong><\/div>\n<\/td>\n
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110-115\u00b0F \/ 43-46\u00b0C<\/div>\n<\/td>\n
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80-82\u00b0F \/ 27-28\u00b0C<\/div>\n<\/td>\n
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86-88\u00b0F \/ 30-31\u00b0C<\/div>\n<\/td>\n
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Ch\u1ee9a ch\u1ea5t r\u1eafn s\u1eefa; d\u1ec5 b\u1ecb ch\u00e1y h\u01a1n.<\/div>\n<\/td>\n<\/tr>\n
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Tr\u1eafng<\/strong><\/div>\n<\/td>\n
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105-110\u00b0F \/ 40-43\u00b0C<\/div>\n<\/td>\n
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78-80\u00b0F \/ 26-27\u00b0C<\/div>\n<\/td>\n
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84-86\u00b0F \/ 29-30\u00b0C<\/div>\n<\/td>\n
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N\u1ed9i dung \u0111\u01b0\u1eddng\/s\u1eefa cao nh\u1ea5t; s\u1eed d\u1ee5ng l\u1eeda r\u1ea5t nh\u1ecf.<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
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V\u01b0\u1ee3t Qua S\u00f4 C\u00f4 La<\/h3>\n
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Qu\u00e1 tr\u00ecnh k\u1ebft tinh \u0111\u01b0\u1eddng tu\u00e2n theo c\u00e1c quy t\u1eafc kh\u00e1c nhau nh\u01b0ng \u0111\u1ec1u quan tr\u1ecdng nh\u01b0 nhau. Ch\u00fang t\u00f4i ph\u00e2n lo\u1ea1i k\u1eb9o \u0111\u01b0\u1eddng th\u00e0nh hai lo\u1ea1i ch\u00ednh: tinh th\u1ec3 v\u00e0 kh\u00f4ng tinh th\u1ec3.<\/div>\n
<\/div>\n
K\u1eb9o trong su\u1ed1t nh\u01b0 fudge v\u00e0 fondant n\u00ean c\u00f3 c\u1ea5u tr\u00fac tinh th\u1ec3 m\u1ecbn, m\u01b0\u1ee3t m\u00e0. Kh\u00f4ng tinh th\u1ec3 ho\u1eb7c v\u00f4 \u0111\u1ecbnh h\u00ecnh k\u1eb9o c\u1ee9ng gi\u1ed1ng nh\u01b0 k\u1eb9o c\u1ee9ng<\/a> k\u1eb9o, k\u1eb9o m\u00fat, v\u00e0 k\u1eb9o m\u1ec1m kh\u00f4ng c\u00f3 tinh th\u1ec3 n\u00e0o c\u1ea3. \u0110i\u1ec1u n\u00e0y t\u1ea1o ra k\u1ebft c\u1ea5u nh\u01b0 th\u1ee7y tinh.<\/div>\n
<\/div>\n
\u0110\u1ec3 t\u1ea1o ra k\u1eb9o kh\u00f4ng k\u1ebft tinh, b\u1ea1n ph\u1ea3i ng\u0103n ch\u1eb7n c\u00e1c ph\u00e2n t\u1eed \u0111\u01b0\u1eddng t\u1ed5 ch\u1ee9c th\u00e0nh tinh th\u1ec3. B\u1ea1n l\u00e0m \u0111i\u1ec1u n\u00e0y b\u1eb1ng c\u00e1ch th\u00eam c\u00e1c \u201cch\u1ea5t g\u00e2y nhi\u1ec5u\u201d v\u00e0o siro \u0111\u01b0\u1eddng.<\/div>\n
<\/div>\n
Nh\u1eefng ch\u1ea5t n\u00e0y bao g\u1ed3m siro ng\u00f4, axit (nh\u01b0 kem tartar), ho\u1eb7c ch\u1ea5t b\u00e9o. Ch\u00fang c\u1ea3n tr\u1edf c\u00e1c ph\u00e2n t\u1eed sucrose. \u0110i\u1ec1u n\u00e0y l\u00e0m gi\u00e1n \u0111o\u1ea1n qu\u00e1 tr\u00ecnh h\u00ecnh th\u00e0nh c\u00e1c c\u1ea5u tr\u00fac tinh th\u1ec3 l\u1edbn, c\u00f3 h\u1ea1t.<\/div>\n
<\/div>\n
\u0110i\u1ec1u n\u00e0y \u0111\u00f2i h\u1ecfi ki\u1ec3m so\u00e1t nhi\u1ec7t \u0111\u1ed9 ch\u00ednh x\u00e1c. \u0110\u1ed1i v\u1edbi k\u1eb9o c\u1ee9ng trong su\u1ed1t, n\u1ea5u siro \u0111\u01b0\u1eddng \u0111\u1ebfn \u201cGiai \u0111o\u1ea1n N\u1ee9t C\u1ee9ng\u201d \u2013 t\u1eeb 149-154\u00b0C (300-310\u00b0F). \u1ede \u0111i\u1ec3m n\u00e0y, h\u00e0m l\u01b0\u1ee3ng n\u01b0\u1edbc r\u1ea5t th\u1ea5p khi\u1ebfn dung d\u1ecbch \u0111\u01b0\u1eddng tr\u1edf th\u00e0nh m\u1ed9t ch\u1ea5t r\u1eafn d\u1ebbo, v\u00f4 \u0111\u1ecbnh h\u00ecnh khi ngu\u1ed9i.<\/div>\n
\"b\u00e1nh,<\/a><\/div>\n
<\/div>\n

H\u01b0\u1edbng D\u1eabn c\u1ee7a Nh\u00e0 Khoa H\u1ecdc V\u1eadt Li\u1ec7u<\/h2>\n
<\/div>\n
Khu\u00f4n kh\u00f4ng ch\u1ec9 l\u00e0 m\u1ed9t chi\u1ebfc h\u1ed9p th\u1ee5 \u0111\u1ed9ng. N\u00f3 l\u00e0 m\u1ed9t c\u00f4ng c\u1ee5 t\u00edch c\u1ef1c trong qu\u00e1 tr\u00ecnh l\u00e0m k\u1eb9o. V\u1eadt li\u1ec7u l\u00e0m khu\u00f4n c\u00f3 c\u00e1c \u0111\u1eb7c t\u00ednh v\u1eadt l\u00fd \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn s\u1ea3n ph\u1ea9m cu\u1ed1i c\u00f9ng c\u1ee7a b\u1ea1n.<\/div>\n
<\/div>\n
Ch\u1ecdn \u0111\u00fang lo\u1ea1i khu\u00f4n l\u00e0 m\u1ed9t quy\u1ebft \u0111\u1ecbnh k\u1ef9 thu\u1eadt. N\u00f3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1ed9 b\u00f3ng, chuy\u1ec3n giao chi ti\u1ebft v\u00e0 d\u1ec5 th\u00e1o khu\u00f4n. \u0110i\u1ec1u n\u00e0y d\u1ef1a tr\u00ean c\u00e1c \u0111\u1eb7c t\u00ednh khoa h\u1ecdc, kh\u00f4ng ph\u1ea3i c\u00e1c tuy\u00ean b\u1ed1 ti\u1ebfp th\u1ecb.<\/div>\n
<\/div>\n

So S\u00e1nh C\u00e1c C\u00f4ng C\u1ee5<\/h3>\n
<\/div>\n
L\u1ef1a ch\u1ecdn v\u1eadt li\u1ec7u l\u00e0m khu\u00f4n \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn c\u00e1ch l\u00e0m m\u00e1t v\u00e0 b\u1ec1 m\u1eb7t cu\u1ed1i c\u00f9ng c\u1ee7a k\u1eb9o. M\u1ed7i v\u1eadt li\u1ec7u mang l\u1ea1i nh\u1eefng l\u1ee3i th\u1ebf v\u00e0 b\u1ea5t l\u1ee3i ri\u00eang d\u1ef1a tr\u00ean \u0111\u1eb7c t\u00ednh v\u1eadt l\u00fd c\u1ee7a n\u00f3.<\/div>\n
<\/div>\n
Ch\u00fang ta c\u00f3 th\u1ec3 so s\u00e1nh c\u00e1c v\u1eadt li\u1ec7u ph\u1ed5 bi\u1ebfn nh\u1ea5t \u2013 polycarbonate, silicone, v\u00e0 kim lo\u1ea1i \u2013 d\u1ef1a tr\u00ean m\u1ed9t s\u1ed1 \u0111\u1eb7c t\u00ednh k\u1ef9 thu\u1eadt ch\u00ednh. \u0110i\u1ec1u n\u00e0y gi\u00fap ch\u00fang ta hi\u1ec3u r\u00f5 m\u1ee5c \u0111\u00edch s\u1eed d\u1ee5ng l\u00fd t\u01b0\u1edfng c\u1ee7a ch\u00fang.<\/div>\n
<\/div>\n
\n\n\n\n\n\n\n<\/colgroup>\n\n\n\n\n\n\n\n
\n
Thu\u1ed9c t\u00ednh<\/div>\n<\/td>\n
\n
Polycarbonate (Nh\u1ef1a c\u1ee9ng)<\/div>\n<\/td>\n
\n
Silicone<\/div>\n<\/td>\n
\n
Kim lo\u1ea1i (Nh\u00f4m\/Inox)<\/div>\n<\/td>\n
\n
\u1ea2nh h\u01b0\u1edfng \u0111\u1ebfn K\u1eb9o<\/div>\n<\/td>\n<\/tr>\n
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\u0110\u1ed9 d\u1eabn nhi\u1ec7t<\/strong><\/div>\n<\/td>\n
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Th\u1ea5p<\/div>\n<\/td>\n
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R\u1ea5t th\u1ea5p<\/div>\n<\/td>\n
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Cao<\/div>\n<\/td>\n
\n
Ch\u1ecbu nhi\u1ec7t cao<\/em> cho ph\u00e9p l\u00e0m m\u00e1t nhanh h\u01a1n, \u0111\u1ec1u h\u01a1n, th\u00fac \u0111\u1ea9y s\u1ef1 h\u00ecnh th\u00e0nh tinh th\u1ec3 t\u1ed1t h\u01a1n v\u00e0 co l\u1ea1i \u0111\u1ec3 d\u1ec5 th\u00e1o ra.<\/div>\n<\/td>\n<\/tr>\n
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B\u1ec1 m\u1eb7t ho\u00e0n thi\u1ec7n<\/strong><\/div>\n<\/td>\n
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\u0110\u1ed9 b\u00f3ng r\u1ea5t cao<\/div>\n<\/td>\n
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M\u1edd \u0111\u1ebfn b\u00f3ng b\u00e1n m\u1edd<\/div>\n<\/td>\n
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B\u00f3ng v\u1eeba \u0111\u1ebfn cao<\/div>\n<\/td>\n
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B\u1ec1 m\u1eb7t si\u00eau m\u1ecbn c\u1ee7a polycarbonate<\/em> l\u00e0 c\u1ea7n thi\u1ebft \u0111\u1ec3 t\u1ea1o ra l\u1edbp ho\u00e0n thi\u1ec7n b\u00f3ng cao, chuy\u00ean nghi\u1ec7p tr\u00ean s\u00f4 c\u00f4 la.<\/div>\n<\/td>\n<\/tr>\n
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\u0110\u1ed9 c\u1ee9ng\/\u0110\u1ed9 linh ho\u1ea1t<\/strong><\/div>\n<\/td>\n
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C\u1ee9ng<\/div>\n<\/td>\n
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R\u1ea5t linh ho\u1ea1t<\/div>\n<\/td>\n
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C\u1ee9ng<\/div>\n<\/td>\n
\n
\u0110\u1ed9 c\u1ee9ng<\/em> l\u00e0 y\u1ebfu t\u1ed1 then ch\u1ed1t \u0111\u1ec3 duy tr\u00ec \u0111\u1ed9 d\u00e0y v\u1ecf nh\u1ea5t qu\u00e1n. Linh ho\u1ea1t<\/em> h\u1ed7 tr\u1ee3 th\u00e1o khu\u00f4n k\u1eb9o ph\u1ee9c t\u1ea1p ho\u1eb7c d\u00ednh d\u00ednh.<\/div>\n<\/td>\n<\/tr>\n
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Chuy\u1ec3n giao chi ti\u1ebft<\/strong><\/div>\n<\/td>\n
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Xu\u1ea5t s\u1eafc<\/div>\n<\/td>\n
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R\u1ea5t t\u1ed1t \u0111\u1ebfn Xu\u1ea5t s\u1eafc<\/div>\n<\/td>\n
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T\u1ed1t \u0111\u1ebfn R\u1ea5t t\u1ed1t<\/div>\n<\/td>\n
\n
T\u1ea5t c\u1ea3 \u0111\u1ec1u c\u00f3 th\u1ec3 t\u1ed1t, nh\u01b0ng \u0111\u1ed9 c\u1ee9ng c\u1ee7a polycarbonate ng\u0103n ch\u1eb7n bi\u1ebfn d\u1ea1ng trong qu\u00e1 tr\u00ecnh \u0111\u1ed5 \u0111\u1ea7y.<\/div>\n<\/td>\n<\/tr>\n
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Tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng l\u00fd t\u01b0\u1edfng<\/strong><\/div>\n<\/td>\n
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K\u1eb9o cao c\u1ea5p, thanh s\u00f4 c\u00f4 la<\/div>\n<\/td>\n
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K\u1eb9o d\u1ebbo, caramel, h\u00ecnh d\u1ea1ng ph\u1ee9c t\u1ea1p<\/div>\n<\/td>\n
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S\u1ea3n xu\u1ea5t s\u1ed1 l\u01b0\u1ee3ng l\u1edbn, k\u1eb9o c\u1ee9ng<\/div>\n<\/td>\n
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Ch\u1ecdn d\u1ef1a tr\u00ean k\u1ebft th\u00fac mong mu\u1ed1n v\u00e0 lo\u1ea1i k\u1eb9o.<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
<\/div>\n

H\u00e0m \u00fd th\u1ef1c t\u1ebf<\/h3>\n
<\/div>\n
C\u00e1c \u0111\u1eb7c t\u00ednh k\u1ef9 thu\u1eadt n\u00e0y \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn c\u00f4ng vi\u1ec7c c\u1ee7a b\u1ea1n. \u0110\u1ec3 c\u00f3 \u0111\u1ed9 b\u00f3ng t\u1ed1i \u0111a tr\u00ean s\u00f4 c\u00f4 la, polycarbonate l\u00e0 l\u1ef1a ch\u1ecdn t\u1ed1t nh\u1ea5t.<\/div>\n
<\/div>\n
\u0110\u1ed9 c\u1ee9ng c\u1ee7a n\u00f3 \u0111\u1ea3m b\u1ea3o l\u1edbp v\u1ecf s\u00f4 c\u00f4 la kh\u00f4ng b\u1ecb u\u1ed1n cong. N\u0103ng l\u01b0\u1ee3ng b\u1ec1 m\u1eb7t th\u1ea5p cho ph\u00e9p s\u00f4 c\u00f4 la \u0111\u00e3 t\u00f4i c\u00f3 th\u1ec3 co l\u1ea1i ho\u00e0n h\u1ea3o. N\u00f3 t\u00e1ch kh\u1ecfi khu\u00f4n \u0111\u1ec3 t\u1ea1o ra \u0111\u1ed9 b\u00f3ng nh\u01b0 g\u01b0\u01a1ng.<\/div>\n
<\/div>\n
\u0110\u1ed1i v\u1edbi h\u00ecnh d\u1ea1ng ph\u1ee9c t\u1ea1p ho\u1eb7c k\u1eb9o d\u00ednh nh\u01b0 k\u1eb9o d\u1ebbo v\u00e0 caramel, silicone kh\u00f4ng th\u1ec3 s\u00e1nh b\u1eb1ng. \u0110\u1ed9 linh ho\u1ea1t c\u1ef1c cao v\u00e0 t\u00ednh ch\u1ed1ng d\u00ednh c\u1ee7a n\u00f3 cho ph\u00e9p th\u00e1o khu\u00f4n c\u00e1c m\u1eb7t h\u00e0ng m\u1ecfng manh m\u00e0 kh\u00f4ng l\u00e0m h\u1ecfng ch\u00fang.<\/div>\n
<\/div>\n
\u0110\u1ed1i v\u1edbi s\u1ea3n xu\u1ea5t s\u1ed1 l\u01b0\u1ee3ng l\u1edbn ho\u1eb7c c\u00f4ng vi\u1ec7c \u0111\u01b0\u1eddng n\u00f3ng, khu\u00f4n kim lo\u1ea1i th\u01b0\u1eddng \u0111\u01b0\u1ee3c \u01b0a chu\u1ed9ng. Ch\u00fang c\u1ef1c k\u1ef3 b\u1ec1n b\u1ec9. \u0110\u1ed9 d\u1eabn nhi\u1ec7t cao cho ph\u00e9p l\u00e0m m\u00e1t nhanh v\u00e0 \u0111\u1ec1u, \u0111i\u1ec1u n\u00e0y r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 D\u00e2y chuy\u1ec1n s\u1ea3n xu\u1ea5t k\u1eb9o c\u1ee9ng<\/a>.<\/div>\n
<\/div>\n
C\u1ea3m gi\u00e1c khi l\u00e0m vi\u1ec7c v\u1edbi c\u00e1c v\u1eadt li\u1ec7u n\u00e0y c\u0169ng kh\u00e1c bi\u1ec7t. G\u00f5 m\u1ed9t khu\u00f4n polycarbonate c\u1ee9ng l\u00ean b\u1ec1 m\u1eb7t l\u00e0m vi\u1ec7c c\u1ee7a b\u1ea1n \u0111\u1ec3 lo\u1ea1i b\u1ecf bong b\u00f3ng kh\u00ed. \u0110i\u1ec1u n\u00e0y l\u00e0 ch\u1eafc ch\u1eafn, hi\u1ec7u qu\u1ea3 v\u00e0 r\u1ea5t quan tr\u1ecdng. C\u00f9ng m\u1ed9t h\u00e0nh \u0111\u1ed9ng \u0111\u00f3 \u00edt kh\u1ea3 thi h\u01a1n nhi\u1ec1u v\u1edbi khu\u00f4n silicone linh ho\u1ea1t, v\u00ec n\u00f3 s\u1ebd h\u1ea5p th\u1ee5 l\u1ef1c t\u00e1c \u0111\u1ed9ng.<\/div>\n
<\/div>\n
<\/div>\n

X\u1eed l\u00fd s\u1ef1 c\u1ed1 th\u1ea5t b\u1ea1i<\/h2>\n
<\/div>\n
M\u1ed7i th\u1ea5t b\u1ea1i trong qu\u00e1 tr\u00ecnh \u0111\u1ed5 khu\u00f4n k\u1eb9o \u0111\u1ec1u c\u00f3 nguy\u00ean nh\u00e2n khoa h\u1ecdc. \u0110i\u1ec1u n\u00e0y bao g\u1ed3m c\u00e1c b\u1ec1 m\u1eb7t b\u00f3ng m\u1edd v\u00e0 v\u1ecf b\u1ecb n\u1ee9t. B\u1eb1ng c\u00e1ch hi\u1ec3u c\u00e1c nguy\u00ean l\u00fd, ch\u00fang ta c\u00f3 th\u1ec3 chuy\u1ec3n t\u1eeb \u0111o\u00e1n m\u00f2 sang ch\u1ea9n \u0111o\u00e1n k\u1ef9 thu\u1eadt c\u00f3 h\u1ec7 th\u1ed1ng.<\/div>\n
<\/div>\n
C\u00e1ch ti\u1ebfp c\u1eadn n\u00e0y bi\u1ebfn s\u1ef1 th\u1ea5t v\u1ecdng th\u00e0nh c\u01a1 h\u1ed9i h\u1ecdc h\u1ecfi. N\u00f3 gi\u00fap b\u1ea1n x\u00e1c \u0111\u1ecbnh nguy\u00ean nh\u00e2n g\u1ed1c r\u1ec5 c\u1ee7a v\u1ea5n \u0111\u1ec1 v\u00e0 th\u1ef1c hi\u1ec7n c\u00e1c gi\u1ea3i ph\u00e1p ch\u00ednh x\u00e1c. \u0110i\u1ec1u n\u00e0y ti\u1ebft ki\u1ec7m th\u1eddi gian, nguy\u00ean li\u1ec7u v\u00e0 c\u00f4ng s\u1ee9c.<\/div>\n
<\/div>\n
\n\n\n\n\n\n<\/colgroup>\n\n\n\n\n\n\n\n\n
\n
L\u1ed7i \/ Tri\u1ec7u ch\u1ee9ng<\/div>\n<\/td>\n
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D\u1ea5u hi\u1ec7u tr\u1ef1c quan<\/div>\n<\/td>\n
\n
Nguy\u00ean nh\u00e2n k\u1ef9 thu\u1eadt<\/div>\n<\/td>\n
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Gi\u1ea3i ph\u00e1p K\u1ef9 thu\u1eadt<\/div>\n<\/td>\n<\/tr>\n
\n
B\u00f4ng b\u00f3ng b\u00e9o<\/strong><\/div>\n<\/td>\n
\n
V\u1ec7t x\u00e1m\/tr\u1eafng ho\u1eb7c l\u1edbp m\u1edd tr\u00ean b\u1ec1 m\u1eb7t.<\/div>\n<\/td>\n
\n
Nhi\u1ec7t \u0111\u1ed9 nung kh\u00f4ng \u0111\u00fang (crystal d\u1ea1ng V kh\u00f4ng chi\u1ebfm \u01b0u th\u1ebf); dao \u0111\u1ed9ng nhi\u1ec7t \u0111\u1ed9 l\u01b0u tr\u1eef.<\/div>\n<\/td>\n
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Nung l\u1ea1i chocolate \u0111\u00fang c\u00e1ch. L\u01b0u tr\u1eef k\u1eb9o \u0111\u00e3 ho\u00e0n th\u00e0nh \u1edf nhi\u1ec7t \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh (kho\u1ea3ng 15-20\u00b0C \/ 60-68\u00b0F).<\/div>\n<\/td>\n<\/tr>\n
\n
B\u00f4ng \u0111\u01b0\u1eddng<\/strong><\/div>\n<\/td>\n
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B\u1ec1 m\u1eb7t x\u1ec9n, tr\u1eafng; c\u1ea3m gi\u00e1c th\u00f4 r\u00e1p.<\/div>\n<\/td>\n
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Ng\u01b0ng t\u1ee5 tr\u00ean b\u1ec1 m\u1eb7t k\u1eb9o, h\u00f2a tan \u0111\u01b0\u1eddng r\u1ed3i k\u1ebft tinh l\u1ea1i.<\/div>\n<\/td>\n
\n
Tr\u00e1nh l\u00e0m l\u1ea1nh k\u1eb9o \u1ea5m. \u0110\u1ea3m b\u1ea3o m\u00f4i tr\u01b0\u1eddng l\u00e0m vi\u1ec7c kh\u00f4ng qu\u00e1 \u1ea9m \u01b0\u1edbt. L\u01b0u tr\u1eef trong h\u1ed9p k\u00edn kh\u00ed.<\/div>\n<\/td>\n<\/tr>\n
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V\u1ebft m\u1edd \/ Ho\u00e0n thi\u1ec7n k\u00e9m<\/strong><\/div>\n<\/td>\n
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C\u00e1c v\u00f9ng kh\u00f4ng b\u00f3ng lo\u00e1ng.<\/div>\n<\/td>\n
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Ti\u1ebfp x\u00fac k\u00e9m v\u1edbi b\u1ec1 m\u1eb7t khu\u00f4n; khu\u00f4n b\u1ea9n\/tr\u1ea7y x\u01b0\u1edbc; chocolate nung kh\u00f4ng \u0111\u00fang c\u00e1ch.<\/div>\n<\/td>\n
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\u0110\u1ea3m b\u1ea3o khu\u00f4n s\u1ea1ch s\u1ebd ho\u00e0n to\u00e0n v\u00e0 \u0111\u00e1nh b\u00f3ng b\u1eb1ng b\u00f4ng cotton. \u0110\u1ea3m b\u1ea3o chocolate \u1edf nhi\u1ec7t \u0111\u1ed9 l\u00e0m vi\u1ec7c ph\u00f9 h\u1ee3p \u0111\u1ec3 \u0111\u1ea1t \u0111\u1ed9 ch\u1ea3y t\u1ed1i \u01b0u.<\/div>\n<\/td>\n<\/tr>\n
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B\u1ecdt kh\u00ed<\/strong><\/div>\n<\/td>\n
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C\u00e1c v\u1ebft l\u00f5m nh\u1ecf ho\u1eb7c l\u1ed7 tr\u00ean b\u1ec1 m\u1eb7t.<\/div>\n<\/td>\n
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\u0110\u1ed9 nh\u1edbt qu\u00e1 cao; kh\u00ed h\u00f2a v\u00e0o trong qu\u00e1 tr\u00ecnh tr\u1ed9n; k\u1ef9 thu\u1eadt \u0111\u1ed5 kh\u00f4ng \u0111\u00fang.<\/div>\n<\/td>\n
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\u0110\u00e1nh m\u1ea1nh khu\u00f4n v\u00e0o b\u1ec1 m\u1eb7t l\u00e0m vi\u1ec7c sau khi \u0111\u1ed5 \u0111\u1ec3 gi\u1ea3i ph\u00f3ng kh\u00ed b\u1ecb m\u1eafc k\u1eb9t. \u0110\u1ea3m b\u1ea3o socola \u0111\u1ee7 ch\u1ea3y.<\/div>\n<\/td>\n<\/tr>\n
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Kh\u00f3 th\u00e1o khu\u00f4n<\/strong><\/div>\n<\/td>\n
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K\u1eb9o d\u00ednh v\u00e0o khu\u00f4n.<\/div>\n<\/td>\n
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Thi\u1ebfu l\u00e0m m\u00e1t\/co r\u00fat; c\u00f4ng th\u1ee9c k\u1eb9o d\u00ednh (v\u00ed d\u1ee5, \u0111\u01b0\u1eddng invert cao); khu\u00f4n linh ho\u1ea1t.<\/div>\n<\/td>\n
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Cho th\u1eddi gian ph\u00f9 h\u1ee3p \u0111\u1ec3 socola ngu\u1ed9i v\u00e0 co r\u00fat. \u0110\u1ed1i v\u1edbi socola, s\u1ef1 co r\u00fat n\u00e0y l\u00e0 d\u1ea5u hi\u1ec7u c\u1ee7a vi\u1ec7c temper t\u1ed1t. S\u1eed d\u1ee5ng khu\u00f4n c\u1ee9ng \u0111\u1ec3 d\u1ec5 th\u00e1o h\u01a1n.<\/div>\n<\/td>\n<\/tr>\n
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V\u1ecf b\u1ecb n\u1ee9t (Bonbons)<\/strong><\/div>\n<\/td>\n
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V\u1ecf n\u1ee9t khi th\u00e1o ra ho\u1eb7c x\u1eed l\u00fd.<\/div>\n<\/td>\n
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V\u1ecf qu\u00e1 m\u1ecfng; s\u1ed1c nhi\u1ec7t (l\u00e0m l\u1ea1nh qu\u00e1 nhanh).<\/div>\n<\/td>\n
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\u00c1p d\u1ee5ng l\u1edbp ph\u1ee7 th\u1ee9 hai \u0111\u1ec3 t\u0103ng \u0111\u1ed9 b\u1ec1n cho v\u1ecf. \u0110\u1ec3 k\u1eb9o ngu\u1ed9i \u1edf nhi\u1ec7t \u0111\u1ed9 ph\u00f2ng ki\u1ec3m so\u00e1t tr\u01b0\u1edbc khi \u0111\u01b0a v\u00e0o t\u1ee7 l\u1ea1nh.<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
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H\u00e3y xem x\u00e9t k\u1ef9 h\u01a1n v\u1ea5n \u0111\u1ec1 ph\u1ed5 bi\u1ebfn nh\u1ea5t: n\u1ea5m m\u1ee1 b\u00e9o. \u0110\u00e2y g\u1ea7n nh\u01b0 lu\u00f4n l\u00e0 v\u1ea5n \u0111\u1ec1 k\u1ebft tinh. Khi socola kh\u00f4ng \u0111\u01b0\u1ee3c temper \u0111\u00fang c\u00e1ch, ho\u1eb7c khi g\u1eb7p s\u1ed1c nhi\u1ec7t trong qu\u00e1 tr\u00ecnh b\u1ea3o qu\u1ea3n, c\u00e1c tinh th\u1ec3 b\u01a1 ca cao kh\u00f4ng \u1ed5n \u0111\u1ecbnh c\u00f3 th\u1ec3 di chuy\u1ec3n l\u00ean b\u1ec1 m\u1eb7t v\u00e0 k\u1ebft tinh l\u1ea1i. \u0110i\u1ec1u n\u00e0y t\u1ea1o ra l\u1edbp m\u1edd x\u00e1m \u0111\u1eb7c tr\u01b0ng. Gi\u1ea3i ph\u00e1p ho\u00e0n to\u00e0n k\u1ef9 thu\u1eadt: \u0111\u1ea3m b\u1ea3o temper ho\u00e0n h\u1ea3o \u0111\u1ec3 t\u1ea1o ra c\u1ea5u tr\u00fac tinh th\u1ec3 \u1ed5n \u0111\u1ecbnh d\u1ea1ng V t\u1eeb \u0111\u1ea7u. Duy tr\u00ec m\u00f4i tr\u01b0\u1eddng l\u01b0u tr\u1eef m\u00e1t m\u1ebb, kh\u00f4 r\u00e1o v\u00e0 \u1ed5n \u0111\u1ecbnh.<\/div>\n
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V\u1ebft x\u1ec9n m\u00e0u l\u00e0 m\u1ed9t v\u1ea5n \u0111\u1ec1 th\u01b0\u1eddng g\u1eb7p kh\u00e1c. Ng\u01b0\u1eddi ta th\u01b0\u1eddng \u0111\u1ed5 l\u1ed7i cho socola. Tuy nhi\u00ean, ch\u00fang t\u00f4i nh\u1eadn th\u1ea5y \u0111\u00f3 th\u01b0\u1eddng l\u00e0 v\u1ea5n \u0111\u1ec1 v\u1ec1 v\u1eadt li\u1ec7u. Khu\u00f4n kh\u00f4ng s\u1ea1ch ho\u00e0n to\u00e0n ho\u1eb7c c\u00f3 v\u1ebft tr\u1ea7y x\u01b0\u1edbc vi m\u00f4 s\u1ebd l\u00e0m gi\u00e1n \u0111o\u1ea1n b\u1ec1 m\u1eb7t m\u1ecbn. T\u01b0\u01a1ng t\u1ef1, n\u1ebfu socola qu\u00e1 l\u1ea1nh v\u00e0 \u0111\u1eb7c, n\u00f3 kh\u00f4ng th\u1ec3 ch\u1ea3y v\u00e0o m\u1ecdi khe nh\u1ecf c\u1ee7a khu\u00f4n. \u0110i\u1ec1u n\u00e0y d\u1eabn \u0111\u1ebfn ti\u1ebfp x\u00fac k\u00e9m v\u00e0 b\u1ec1 m\u1eb7t x\u1ec9n m\u00e0u. Gi\u1ea3i ph\u00e1p l\u00e0 \u0111\u00e1nh b\u00f3ng khu\u00f4n polycarbonate b\u1eb1ng b\u00f4ng cotton tr\u01b0\u1edbc khi s\u1eed d\u1ee5ng. L\u00e0m vi\u1ec7c v\u1edbi socola \u1edf nhi\u1ec7t \u0111\u1ed9 t\u1ed1i \u0111a c\u1ee7a ph\u1ea1m vi l\u00e0m vi\u1ec7c \u0111\u1ec3 \u0111\u1ea1t \u0111\u1ed9 ch\u1ea3y t\u1ed1i \u0111a.<\/div>\n
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T\u1eeb k\u1ef9 thu\u1eadt vi\u00ean \u0111\u1ebfn ngh\u1ec7 s\u0129<\/h2>\n
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Ch\u00fang t\u00f4i \u0111\u00e3 \u0111i t\u1eeb v\u1eadt l\u00fd c\u1ee7a d\u00f2ng ch\u1ea3y nhi\u1ec7t \u0111\u1ebfn khoa h\u1ecdc ph\u00e2n t\u1eed c\u1ee7a qu\u00e1 tr\u00ecnh k\u1ebft tinh. Ch\u00fang t\u00f4i \u0111\u00e3 ph\u00e2n t\u00edch v\u1eadt li\u1ec7u nh\u01b0 m\u1ed9t nh\u00e0 khoa h\u1ecdc v\u00e0 ch\u1ea9n \u0111o\u00e1n c\u00e1c l\u1ed7i nh\u01b0 m\u1ed9t k\u1ef9 s\u01b0.<\/div>\n
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H\u00e0nh tr\u00ecnh n\u00e0y v\u00e0o ph\u00eda k\u1ef9 thu\u1eadt c\u1ee7a vi\u1ec7c \u0111\u1ed5 k\u1eb9o x\u00e2y d\u1ef1ng n\u1ec1n t\u1ea3ng ki\u1ec3m so\u00e1t v\u00e0 nh\u1ea5t qu\u00e1n. \u0110\u00f3 l\u00e0 hi\u1ec3u r\u00f5 \u201ct\u1ea1i sao\u201d c\u1ee7a t\u1eebng b\u01b0\u1edbc.<\/div>\n
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Th\u00e0nh th\u1ea1o c\u00e1c nguy\u00ean t\u1eafc k\u1ef9 thu\u1eadt n\u00e0y<\/a> kh\u00f4ng l\u00e0m gi\u1ea3m \u0111i t\u00ednh s\u00e1ng t\u1ea1o c\u1ee7a ngh\u1ec1 l\u00e0m k\u1eb9o. Ng\u01b0\u1ee3c l\u1ea1i, n\u00f3 gi\u1ea3i ph\u00f3ng n\u00f3. Khi b\u1ea1n kh\u00f4ng c\u00f2n ph\u1ea3i ch\u1ed1ng l\u1ea1i nh\u1eefng k\u1ebft qu\u1ea3 kh\u00f4ng th\u1ec3 \u0111o\u00e1n tr\u01b0\u1edbc, b\u1ea1n c\u00f3 th\u1ec3 t\u1eadp trung v\u00e0o h\u01b0\u01a1ng v\u1ecb, thi\u1ebft k\u1ebf v\u00e0 ngh\u1ec7 thu\u1eadt.<\/div>\n
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B\u1ea1n \u0111\u00e3 chuy\u1ec3n t\u1eeb vi\u1ec7c theo c\u00f4ng th\u1ee9c sang l\u00e0m ch\u1ee7 ph\u01b0\u01a1ng ti\u1ec7n.<\/div>\n
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