Glutinous rice paper.
After toffee absorbs moisture, its hardness decreases and sticks to the outer packaging, deforming or even deteriorating, so you will wrap a layer of glutinous rice paper on the surface to absorb moisture.
Glutinous rice paper is an edible film. Transparent, tasteless, with a thickness of 0.02~0.025mm, it melts in the mouth. It is made from starch, and its main nutritional component is the carbohydrates rich in starch.