How to Prevent Boba From Sticking Together: 9 Proven Tips Boba should be soft, chewy, and easy to separate—not one sticky mass at the bottom of your container. If you are wondering how to prevent boba from sticking together, the key is controlling moisture, cooking, rinsing, temperature, and holding conditions. Tapioca pearls naturally contain starch, which can make cooked pearls cling to one another when they are overcooked, left without enough liquid, cooled incorrectly, or