5) Next up I insulated the pipes where condensation forms directly from the compressor. I used inexpensive water pipe insulation from copyright or Home Depot to wrap all exposed parts that had potential for condensation.

5 Posted October 24, 2015 Hi everyone - new member to the forum, and I was drawn here by this thread. I have been using my HR freeze dryer for a few months now and it's been great. Reading about all your experiences shows that I'm not alone in loving this machine!

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Do you have any vacuum gauges at all to test the pump? ( Though I doubt that is the problem based upon your tests )

I would prefer those fittings to have internal Este rings and knurled thread on ports (similar to R134a vacuum gauge sets) that do not require high torque compression fittings. Finger tight and you are good to go. You spot a leak, change the O ring and you're back in business.

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Freeze-dried foods are extremely popular among backpackers and culinary masters, and now freeze-dryers are available for home use. But is a home freeze-dryer the appliance for you? Here is some information designed to cut through the Shop Now advertising hype and

The shelf life of canned and dehydrated food is approximately two to three years, while freeze dried food easily lasts eight to ten times as long.

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My husband has been contemplating cost effective alternative ways to get oil-less vacuum happening... what would the specs needed be, since I don't have a pump to look at. Hopefully I asked that in a way that makes sense.

There are 3 ports on the chamber that I made slits in the plastic to get around and taped them up once around them. Do not tape to the insulation. Tape only to the vapor barrier plastic. It doesn't take long, just be careful. After the plastic is in place and secure around the chamber I sealed the plastic to the back of the front and back panels using the packing tape. All the way around the front and back of the chamber to completely seal the chamber from outside air and humidity.

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.

Without an pump isolation valve I would expect some air to flow back into the chamber through the pump resulting in the steady rise you witnessed. I saw the same phenomenon before I installed an isolation valve on my pump.