There can be a casting of thick viscose solution through a slot dye that forms these sheer sheets. However, the temperature control of the polymer melt is very important. This sheer sheet melts at 175-205 Celsius, which is around 347 Fahrenheit. Therefore, aside from wrapping gifts & gadgets, you can utilise them for wrapping up your food too. You do not have to worry about cellophane particles entering your food in hot weather. The food is safe even if you put it in the microwave wrapped in cellophane; just make the sheets are microwave safe.