The Dehydration Process In dehydration, food product moves through a drying chamber where air removes the moisture from the food. This occurs at low temperatures so that the nutritional profile stays intact.
The Freeze-Dry Process
In freeze-drying, the product is first flash frozen and then placed in a vacuum drying chamber. This process removes 98% of the water and moisture without affecting the taste, color, form or nutritional value of the food item.