A freeze dryer removes about 98% of the water from a perishable material in order to preserve it. This extends its shelf life and makes it more convenient for transport. Freeze dryers work by freezing the material, then reducing the pressure and adding heat to allow the frozen water in the material to change directly to a vapor (which is called sublimation).
In order to hydrate Freezies Fruits, Veggies, and other snacks, warm/hot water must be added. Remember, when you pour out the excess water, you also drain off a bunch of water-soluble vitamins. So try not to oversaturate your products. One huge plus to freeze-dried foods is that they are so nutritious. Soaking them too much takes away this benefit.
The best way to hydrate most freeze-dried foods is to add just enough water that it starts to “pool” at the bottom. Then, stir every so often. For most foods, this will reconstitute it. However, you may need a bit more water for meats in comparison to veggies and fruits. We advise to do a 1:1 ratio when hydrating your freeze-dried foods.