4 ms·

I guess energy costs are an issue here.

• Bender 1y ago
  The energy is paid up front. That's why freeze dried foods cost more. One need not use any energy to re-hydrate although hot water does work best. I can make that using my wood stoves and wood. There is an abundance of wood not too far from me.
• imhoguy 1y ago
  Not really, you usualy harvest during sunny season so you can also harvest energy from sun. Small lyophilizer takes 1kW/h. So you can easily preserve food even offgrid.