Popping boba or bubble tea is a popular Asian drink. Also called tapioca pearls, popping boba is a small ball of starch that has been cooked and then coated with sugar.
The texture is chewy and gummy once you bite into it.
When drinking bubble tea, the popping boba adds an additional element to the beverage.
There are many different types of beverages that feature popping boba such as iced teas, smoothies, juices, and even alcohol.
It can be challenging to understand how exactly this ingredient works in drinks but once you do, you will want to try them all! If you’re curious about what is popping boba — keep reading for more details!
What is Popping Boba?
Popping boba is small balls or pearls of tapioca starch.
They are usually made from ground-up cassava root and water.
Tapioca starch is commonly used as a food additive in many different products ranging from vegan cheeses to various types of ice cream.
When they are added to drinks such as bubble tea, they will start to expand when they come in contact with liquid. This is why they are often called bubbles! It is important to note that not all popping boba are created equal.

There are two different types of popping boba: regular popping boba and mini popping boba.
Mini-popping boba is smaller in size than standard-popping boba and will usually expand much faster than standard-popping boba. This is because of how they are made.
Mini-popping boba is typically made with a different type of starch.
This starch is more porous than standard popping boba starch, which allows it to soak up more liquid.
Mini-popping boba will usually swell up with liquid in a matter of seconds while the standard popping boba will take several minutes to fully expand.
How Does Popping Boba Work?
The best way to understand how popping boba work is to break down the scientific process behind it. First, the popping boba is added to the drink and then they are stirred into the beverage.
At this point, the popping boba will still be coated in sugar. The sugar acts as an inhibiting agent that halts the process of the popping boba expanding. It will stay this way until the sugar coating is dissolved in the drink.
Once this happens, the starch inside the popping boba will start to expand once it comes in contact with the liquid.
When the popping boba swells, they take up more space inside the drink and add an extra texture when drinking it.
At this point, it’s best to stir the drink again to evenly distribute the popping boba throughout the beverage. You want to make sure that they are fully mixed in so they are all ready to be popped!
Why Are There Two Types of Popping Boba?
There are two types of popping boba mainly because of how they are made. The two types of popping boba are standard popping boba and mini popping boba.

Standard popping boba is made with a starch that is more porous and has a larger surface area compared to mini-popping boba.
This allows the standard popping boba to expand much slower because they have more room to soak up the liquid.
Mini-popping boba is made with starch that has a smaller surface area and is less porous. This makes them expand faster because they have less room to soak up the liquid.
There is an important factor that determines which type of popping boba is used in each drink.
Which Drinks Have Popping Boba?
There are tons of drinks that feature popping boba! If you are looking for drinks that have popping boba, here are some popular drinks and where you can find popping boba in them:
Iced teas
Iced teas are a great beverage to add popping boba to because they are already sweetened with sugar.
Smoothies
Smoothies are a great drink to add popping boba to because you can make them sweet or savory depending on what you add.
Juices
Adding popping boba to juice is a really fun way to spruce up a classic beverage!
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