Freeze drying systems are machines or equipment used to remove moisture from materials through a process called freeze drying or lyophilization. This process involves freezing the material at very low temperatures and then applying a vacuum to remove the ice by sublimation, which means converting it directly from a solid to a gas without passing through the liquid phase. This technique is commonly used to preserve perishable items like food, pharmaceuticals, and biological samples because it helps maintain their integrity and extend their shelf life without damaging their structure or properties. visit cryogenicprocessors.com to know more.