Harvest Right Pharmaceutical Freeze Dryer SmallPatented technology keeps the product fresh and preserves the potency, color, shape and nutrition of any organic material. Freeze drying retains 97% of the nutritional value with a 25 year shelf life. The freeze dryer has built in intelligence. It automatically and perfectly manages the freeze drying process. 3. 75 sq ft of tray space. Shelf unit has shelves for 5 trays and 3 L of ice capacity. 110 V outlet. Maintenance: simply filter and replace oil.