At the far extreme of technology, meat is dehydrated by freeze-drying to provide lightweight military rations. |
Dry powder was obtained via freeze-drying process. |
The coffee bricks thus obtained are placed in a freeze-drying chamber which is under vacuum. |
Because royal jelly's composition is nearly 70 percent water, it's highly degradable, and freeze-drying helps lock in its nutrient value. |
Drying this material presented a number of problems because there was neither access to freezing or vacuum freeze-drying facilities, nor other staff to assist the conservators. |
Cryoprotector: any product that helps reduce mechanical stresses caused by ice formation during freeze-drying. |