Predictability and perfect duplication is vital when it comes to medical grade freeze-drying. We have mastered the art of the lyophilization cycle so our results can be perfectly exact when anything less is not acceptable.

 

There are four steps in the lyophilization cycle. First is freezing. During this cycle the product goes from a liquid phase to a frozen phase in an exact controlled amount of time. The second step is evacuation. This step uses a vacuum to reduce pressure below the vapor pressure of ice and even below the triple point of water. The third phase is primary drying. During this phase some heat is added to change the ice into a gas, it must be done exactly right and exactly the same for every single batch of the same item. The final stage is secondary drying. This stage adds more heat to drive off any unfrozen water that is still connected to the final product.