These crispers are usually made of silicone and are great for preserving food. The characteristics of silicone make it waterproof, high temperature resistant, wear-resistant, and not easy to break. Before use, please make sure the silicone crisper has been cleaned. You can put a variety of foods in the box, such as vegetables, fruits, meat, and more, then close the lid to maintain the freshness and shelf life of the food.