Boba tapioca pearls can be refrigerated for several days but are best had within a few hours of cooking. When they are preserved in sugar syrup, they remain soft and chewy. Otherwise, they gradually harden and become crunchy in the middle.
If you want the creamy traditional version, add condensed milk to your bubble tea and shake it well with the other ingredients. However, if you are looking to make a healthy version of the traditional bubble tea, you can cut down the sweetener as well as the tapioca pearls. Use skimmed milk or a plant-based milk depending on your preference. Use fresh fruits to make juice or syrups for a skinny, healthy version of boba tea!