This is a project to try and build a reasonably priced, reasonably functional, freeze-drying machine at home.
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A Freeze Dryer You Can Build In Your Garage
A freeze-dryer like this has three parts. The first is the pump which doesn’t need any explanation. Next to the pump, there must be a water trap. This chilly compartment recondenses the water vapor, so it doesn’t get inside the pump or saturate the things you’re trying to dry. Lastly, there is the drying chamber…