Harvest Right designed these silicone mats for use with their Freeze Dryers. These heat-resistant mats measure 1 mm in thickness. Choose from small, medium, or large sizes below. Choose the size that fits your Harvest Right Freeze Dryer Trays. Use Harvest Right Silicone Mats to prevent food from sticking to your freeze-drying trays. They are dishwasher safe (top rack only) for easy cleaning. You can clean and reuse these mats countless times, saving you money when you use them instead of expensive parchment paper. Click HERE for additional Harvest Right Freeze Dryer supplies.