Double-sided silicon processing that finishes the dish beautifully without losing its shape. Since it does not allow oil and water to pass through, it does not stain cooking utensils and tableware and is easy to clean up afterwards. It allows steam to pass through moderately, so it can be used as a substitute for steamed dishes. It is heat resistant (heat resistant temperature 250 ° C for 20 minutes) and can be widely used in ovens, microwave ovens, and steam convection ovens.