Mesh tray sheets can be used for drying food items such as fruit,vegetables,seafood,flowers etc.,which can help the food items get more hot air through the dehydratorsâ?? mesh trays. Moreover, they are great for drying a variety of fruits and vegetables as they allow air to flow through the small holes, and offer a quick clean-up alternative to the removing and washing the stainless steel trays. Foods simply peel off after drying and clean-up is so easy.The tray sheets are only required a quick rinse under water or a wipe down with a damp cloth. Tray sheets are BPA free.The materials are food grade,201 and 304stainless steel. so you donâ??t have to worry about any nasties coming into contact with your food, and theyâ??re reusable so you can continue to use them time and time again.