How Freeze Drying Works

  • Published on Nov 21, 2018
  • Learn more about how freeze drying works with a Harvest Right Freeze Dryer. Freeze drying food in a Harvest Right Freeze Dryer is the very best way to preserve food, create an emergency food supply, make healthy snacks, and make great camping and backpacking meals.
    Learn more by going to
    Preserve your garden produce, create the perfect emergency food supply, make camping meals and healthy snacks. Unlike other methods of food preservation, freeze drying does not shrink or toughen the food, and retains flavor, color, and nutrition.
    Harvest Right freeze dryers produce food that looks and tastes better than store-bought freeze dried food. Experience the Harvest Right difference!
    Refrigerated, frozen, and canned food just don’t last very long. Freeze dried food will last up to 25 years and does not need to be to be rotated like other foods. Freeze dried food is perfect for home storage.
    Freeze drying maintains 97% of the nutritional value of the food. Other methods of preservation, such as canning and dehydrating, use high temperatures that destroy much of the food value.
    Freeze drying works great for fruits and vegetables, but unlike other options, it also perfectly preserves meat, fish, dairy, eggs, ice cream, and even fully-cooked meals.
    If you can press a button, you can freeze dry! Simply press start on the touch screen, and the patented Smart Freeze© technology senses when it’s done. Everything is automatic.
    Not only will the food you freeze dry at home look and taste better than store-bought, it’s much less expensive! Freeze dry all of your leftover meals, and you’ll save even more money.
    Learn more about the Harvest Right freeze dryer here:
  • Howto & StyleHowto & Style

Comments • 15

  • John
    John 26 days ago

    This was simplier than expected

  • scott king
    scott king 4 months ago +1

    How many kWh per batch?

  • Green Leaf Grow
    Green Leaf Grow 6 months ago

    Interesting af

  • somstt
    somstt 8 months ago

    Any body using harvest right freeze drier ?

    DREWSASTER 10 months ago

    I really hope one day you integrate a magnetron to drastically reduce cycle times, and due to ice having lower absorption rates than liquid water it would evenly heat the food as well. Even a low power microwave system of a few hundred Watts would blow the pad heaters away I think.

    • Ryan Cook
      Ryan Cook 10 months ago

      ​@DREWSASTER Hey, thanks a lot, Drew. Impressive setup you have, there :). I've looked, but hadn't had much luck googling "refrigerant calculators", but it led me to a reference sheet, and then to another *awesome* resource on freeze drying refrigerants, which I'd be happy to share over PM, if you need it.
      I also have bought two turbomolecular pumps yesterday. I don't anticipate using these for freeze drying, I just found a *really* good deal on them :D.
      Generally I'm looking for a way that more affordable, yet more effective units could be produced.
      Cheers :)

      DREWSASTER 10 months ago

      @Ryan Cook I've actually built 2 small freeze dryer's, one of which is on my TheXvid channel.

      DREWSASTER 10 months ago

      @Ryan Cook gotcha. If you lookup refrigerant calculators it's pretty simple to build a -40c loop with common refrigerants, you can get even colder with cascade systems but that's generally not necessary with water based items. You could also use a mechanical booster pump such as a turbomolecular pump combined with a vapor tolerant backing pump, or an aspirator style pump to avoid the need for a refrigeration system as the water sublimating will keep the food frozen.

    • Ryan Cook
      Ryan Cook 10 months ago +1

      @DREWSASTER I'm looking into making such a device for experimenting. I'm struggling getting the temperature down to my goal of -40, though. most refrigerators can't even come close.

    • Ryan Cook
      Ryan Cook 10 months ago +1

      @DREWSASTER Yup. That corona'll getcha every time XD.

  • Forage Forage
    Forage Forage Year ago

    Hey..did you all see the video that John Kohler just did today about your Customer service? 12/8/2018