The non-stick mat has a perforated texture, covered with food grade silicone. Since dough contains about 60-80% water, the perforated texture allows the water to seep through the mat, leaving a perfect crusty finish. Use for your homemade biscuits, pizza, and bread! It is effective for freezing, proofing, and baking for all dough types as well as ideal for the par-baking of tarts. The mat must be used flat and placed on a tray preferably perforated for a better circulation of the heat. To clean the mat, use a soft sponge under running water. Non-stick mat has perforated texture, covered with food grade silicone Effective for freezing or baking bread of all shapes as sizes Must be used flat and placed on a tray Easy to clean--use a soft sponge under hot water