Freeze Drying 101

Freeze Drying 101

Freeze drying, also known as lyophilization, is a preservation process that removes moisture from products while maintaining their quality, structure, and nutritional value. In a commercial freeze dryer, frozen items are placed in a vacuum chamber where the pressure is reduced, causing the frozen water to transition directly from a solid to a gas—a process called sublimation. The water vapor is collected and removed, leaving a lightweight, shelf-stable product that retains its original shape, texture, and flavor without the need for refrigeration. This makes freeze drying one of the most effective methods for preserving a wide range of products, from foods and pet treats to pharmaceuticals and biological materials.
Download our “Freeze Drying 101” guide to learn the truth about common freeze drying misconceptions, understand how commercial freeze dryers work, and see how Parker Freeze Dry can help you scale your production with efficiency and precision.