Removing water quickly is very important because the longer a harvested plant or compound retains water, the higher the chance it has of spoiling, losing nutrition, and losing potency.
Congratulations! You are now the owner of a new freeze-dryer; or you are ready to make the purchase! While the freeze dryer itself is a major investment in food preservation equipment, you will want to make certain you are prepared with a few other items
The best way to keep tabs on used options that may be available is by joining freeze-drying Facebook Groups, following them on Instagram and TikTok, or checking online self-reliance and preparedness forums.
The only way I know to filter the water vapor out would be a cold trap. They usually use liquid nitrogen or dry ice to keep the temperature low enough that all the water condenses out. Obviously you would need a supply of the liquid nitrogen or dry ice that would probably not be cost effective for most of us. The other option to get that cold would be to use a cryocooler and build a cold trap around it. It could be done, but would be pretty expensive. I've been watching some electronics on ebay that have cryocoolers in them, but the cheapest I've seen is around $600. Still not a cheap option, but you wouldn't need dry ice or liquid nitrogen to feed it.
Harvest Right understands that this amazing technology will feel like an investment for some families, so we offer a way for customers to finance a freeze dryer for 0% interest.
And once you have resolved your issue I hope you will stay around and talk to us all about what you have been drying in your machine, etc. 1
Remove all ice every 8 hours of drying time. It is amazing how much faster the drying time drops doing this. A side benefit is water vapor does not contaminate the oil as fast. I've gotten up to 20 cycle per oil change by carefully monitoring the oil and water.
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The two sub-processes, freezing and vacuum drying are done correctly: The freezing process must be quick and the vacuum process should leave only residual moisture.
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This type of website can’t hurt when buying something minor, like a piece of clothing, but it’d be smart to steer clear from them when buying expensive equipment.
A walk-in freezer isn’t an appliance that you would find in a domestic kitchen! But, they’re very common in restaurants.
The food options we had there were extremely limited and full of preservatives. To counter that, my buddy Lance went in with family members on the purchase of a freeze dryer for home use.
You can also use Facebook Marketplace or specialty groups to find used freeze dryers, but most people will list them in specialized stores because that’s where most people will be looking.