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The oxidizer packets are a one-time use, although the mylar bags could possibly be cut down and reused. Cost of vacuum pump oil starts at $20 a gallon, although that oil can be filtered and reused. An oil-less pump is also an option but will be an upfront cost of

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!

In addition, the casing stayed in a Secure managing temperature during our lab examination, even on the best placing.

Considering that they don’t blow heated air away from a hole in get more info your property, warmth-pump dryers use about half the Electricity of the vented dryer per cycle.

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 Este ring and you're back in business.

To protect packaged foods and organic compounds against spoiling, mold growth, color change, and loss of nutrition, use oxygen absorbers to get the residual oxygen inside the packaging to below 0.

6) The first place was the cold return line into the compressor. It had insulation, but a second layer helped stop the constant drips. I used black electrical tape to secure the foam.

Hey there, fellow self-reliant folks! If you're all about preparedness and want to take your food preservation game to the next level, you've probably considered getting yourself a freeze dryer. But let's be honest – freeze dryers aren't exactly known for being wallet-friendly.

The evaporator coils that touch the surface of the stainless steel vacuum chamber reach about -42 F. With food in the chamber and because the location of the thermister is on the middle shelf of the four shelves, the temperature it records is going to range from -25 to -30 F in the nove hour default freeze time. This temperature is very adequate for freeze drying the food.

While I had the unit apart to replace the display I decided to correct the water condensation problem. If you find yourself using your FDer in the same conditons as we do you may want to consider modifying your FDer to keep the condensation from your FDer control circuit and display cards. Here are the steps that I followed to minimize what the NC high humidity climate does to my FDer.

Never buy a freeze-dryer that isn’t sold by a reputable brand or any location that could have tampered with the device. Most companies vet their authorized resellers extensively, so they may be safe. However, used units sold elsewhere may not have been re-tested by the manufacturer for issues.

I did wonder though, since this is gravity flow and not pressure driven as on a car, if having the filter mounted horizontally might result in using only "half" the filter, as the oil would tend to travel through the low side of the filter -- although in practice, I suppose, as the filter material gets plugged it would force the fluid level higher.

Obviously things like ice cream and marshmallows you would want to let the freeze cycle run longer. When I'm ready to start the drying cycle, I open the door, remove the insulator, and check the temperature of the food on the trays with an infrared thermometer. As long as it's below -10F I start the dry cycle. A side note for TonyC, have you ever thought about attaching a mirror to each side of the tray rack to reflect the radiant heat back in to the trays? I've looked at some mirror finish stainless on ebay, and it looks like you could do it for about $40. Not sure if it's worth a try or not. I would think it would let you get more water out in a cycle because the radiant heat wouldn't be warming the ice on the chamber walls. Just a thought.... Edited December 16, 2015 by Pipsqueak duplicate post (log)

Not all of us are technical experts (the 'not' category includes me) but I hope website someone who can help you will come along soon.

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