1.Microwave potato cooker bags all made of 100% polyester fiber cloth. Washable and reusable.2.Washable, reusable microwave bag cooker.3.The potato bags for microwave just baking about 4 minutes, the perfect potatoes baked in the baked pouch. You can enjoy the remaining moist, flavorful and creamy texture.4.Our Microwave Potato Bags are great for all kinds of potatoes, corn cobs, old bread, cornmeal tortillas and more. Also perfect for cooking corn, sweet potatoes, or cooled hard bread.