These medium freeze dryer silicone mats are a convenient and practical solution for clean-up after freeze-drying. With their dishwasher-safe and durable design, you won't have to worry about sticky foods making a mess. Plus, they add a touch of cool factor to your freezing drying process. These food-grade freeze dryer mats can also be used for any 9" x 13" quarter-sheet baking tray. They are very durable, being heat-resistant withstanding temperatures up to 400° F. The perfect accessory for all your freeze dried applications.