Tapioca pearls, the signature ingredient in bubble tea, are made from tapioca starch derived from the cassava root. The starch is mixed with water and sometimes sweeteners to form a dough, which is then rolled into small balls and boiled until they reach their characteristic chewy texture. The cooking process is crucial, as undercooked pearls can be hard and unappetizing, while overcooked pearls can become mushy. The pearls are typically soaked in a sugar syrup after cooking to enhance their flavor. The science of achieving the perfect texture is a key aspect of the bubble tea experience.
