Freeze drying preserves perishable items by removing moisture through sublimation, extending shelf life and maintaining nutritional integrity. It retains original texture, flavor, and aroma while reducing weight and volume for easy transportation. Rehydration capability allows for convenient usage, and precise control ensures customization for specific product needs. This process is widely used in food, pharmaceutical, and biotechnology industries for its effectiveness in preserving and processing various materials. Visit cryogenicprocessors.com to know more.