Dehydrators are appliances used to remove moisture from food items by circulating hot and dry air. This process helps to preserve the food, prevent spoilage, and extend the shelf life of the food. Dehydrators are commonly used to dry fruits, vegetables, jerky, and herbs. They can also be used to make fruit roll-ups and dried flowers. Dehydrators come in different sizes, from small countertop models to larger commercial units. Some models feature adjustable temperature controls and timers for precise drying. Dehydrators are a popular tool for home gardeners who want to preserve their harvest or for people who want to make their own healthy snacks.