In fact, in cold weather, the exploding beads wrap the juice in a film. The membrane in cold weather will burst after being squeezed, spilling sweet juice, which tastes strange. The so-called raw material for making cold film is seaweed, which is made after boiling and cooling. It is a natural raw material. Low in calories, rich in plant fiber, and effective in slimming and beautifying skin. It is all the rage in Japan, and it is deeply loved by consumers after being introduced into milk tea by domestic milk tea brands.