1. Freezing effect: The food in the freezer keeps low temperature, so it will form ice or frost. When you stick food with a wet napkin, it is because the napkin combines with ice or frost to produce a certain viscosity, so that the food can be lifted.

2. Moisture condensation: Moisture in wet wipes will condense into ice at low temperature. When you take the food out of the freezer, the wet tissue touches the surface of the food, absorbs the water on the surface of the food, and condenses into ice when it touches it, so that the food can be stuck. Refrigerator is an electrical device used to refrigerate and freeze food and other items. It consists of a closed box and a refrigeration system. By adjusting the internal temperature, the shelf life of food can be prolonged and its freshness can be maintained.