How do You Freeze Dry Food?

You need to put the food in your freezer for at least two days before you can freeze dry the food. Check and make sure the chamber of the freeze drying machine is completely clean and dry. Press the on button and once the temperature inside reaches to -40 degrees. Wait until the level of the vacuum pump is below 133 x 10-3 mbar. On most machines they will have a light that let you know when this has happened. Place the already frozen food in the freeze dryer. Turn the vacuum of the freeze dryer off and release the valve, also turn off the refrigerator switch. After this you want to place the freeze-dried food into an airtight bag to keep it fresh. You can find more information here: