Harvest Right Home Small Pro Freeze Dryer - Uma visão geral
Harvest Right Home Small Pro Freeze Dryer - Uma visão geral
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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.
5 Posted September 16, 2015 (edited) Gypsyman: Proof again that "great minds think alike". In my initial pondering, I thought using an oil filter base would be a logical approach -- but I didn't have one handy and figured my car might miss it. Besides, one of my goals was to keep this affordable, and they tend to be a little pricey.
We’ve bought six so far with two more on the way. But families and individuals considering getting their own can and should as long as they go in with their eyes open.
5. Maintenance: Understand the maintenance requirements of the machine. Some units require more frequent servicing than others.
When my son goes to college in a few months, we will send him with many freeze dried meals and continue to mail them to him as needed. Most colleges don’t have safe gluten-free options, and while in an ideal world my son would be able to cook all his own food, I know that’s not practical or likely. Freeze dried meals on hand are an easy way to keep from being cross contaminated at the cafeteria!
If you or a family member has Celiac Disease, you know it’s not easy to come up with a last-minute meal. My freeze dryer has made this so much easier!
My son is a teenager who is starting to date. He was asked to a school dance last year and the group ate dinner at someone’s house. The host of the dinner contacted me to find out what would be safe for my son to eat.
3) Inside the front panel I installed a plastic shield over the display card and a water deflector just below the hole to route the exterior condensation to an 11x17 pan beneath the FDer.
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 9 hour default freeze time. This temperature is very adequate for freeze drying the food.
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.
- Complete Meals: Casseroles and soups can also be freeze-dried for convenient meal prep options later on.
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 Buy Now 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 Shop Now ice or liquid nitrogen to feed it.
Harvest Right’s lyophilizer/freeze dryer is the perfect addition to any laboratory. The scientific freeze dryer can be completely customized with your preferred processes.
Making food in your own freeze dryer is less expensive than purchasing it commercially. You can purchase food in bulk and freeze dry it for later. With the current high food prices (which could easily continue to skyrocket), it’s nice to buy in bulk or on clearance to save money.