Dehydrates fruits, vegetables, herbs and spices. Four-tray system dehydrates foods at a fraction of the cost. Can stack up to 8 trays. See-through cover lets you monitor drying process. Drying trays & cover are fully immersible & dishwasher safe. Bottom-mounted fan & heating element for consistent drying. No tray rotation needed. Easy to store! Drying trays nest for compact storage.