It's called exploding beads. In fact, the exploding beads wrapped the juice in a thin cold film. After being squeezed, the cold film will burst and overflow with sweet juice, which tastes strange. The so-called cool film is made of seaweed, which is a natural raw material and is made by boiling and cooling. Low calorie, rich in plant fiber, with the effect of slimming and beautifying skin. The popping beads in milk tea are made of sodium alginate, calcium lactate, fruit puree and drinking water. Blasted beads belong to the spheroidizing treatment of crystals in molecular cuisine. Its principle is that water-soluble sodium alginate reacts with calcium ions to form cross-linking bonds between macromolecules, thus forming gel layers.