I would prefer those fittings to have internal O 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.
Removing the ice from between the chamber wall and the insulation (hopefully will never have to do this again)
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.
What type of oil does the vacuum pump use? Harvest Right freeze dryers use food-grade vacuum pump oil, which is available for purchase. One gallon typically lasts several months with proper filtering and maintenance.
It freezes the product and lowers pressure to remove ice by sublimation. Sublimation is the transition of a substance directly from the solid to the gas phase without passing through the liquid phase.
Upon turning off the pump (pelo isolation valve on the pump - standard setup), the chamber pressure rose quite rapidly going to 2000 mTorr and continuing up in a couple of minutes or so.
Vic says: 2 years ago Going on a second year with the freeze dryer. Considering getting another one. It really takes commitment, but it is very rewarding. The freezer is good also, but it needs constant source of electricity, and the storage is limited to the size of the freezer.
Taking the time to be sure accurate air flow, drainage angle, and positioning of accessories such as drip pan can Buy Now avoid mishaps, preserving you the two time and expense In the long term. A properly-executed set up is the initial step toward productive freeze drying adventures.
I freeze dry right now so I can have as much preserved food as possible. For me, it’s a lot cheaper in the long run, even with the initial investment and run time.
Based upon your work experience you probably know more about vacuum pumps than most of us. Chasing a vacuum leak can be frustratingly difficult.
- Complete Meals: Casseroles and soups can also be freeze-dried for convenient meal prep options later on.
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.
Purchasing a freeze dryer can be an excellent investment for those interested in food preservation, emergency preparedness, or simply enjoying homemade snacks that last longer without losing their quality.
Slight delay at customs but my head was spinning at how fast this was resolved for something that website was out of there control! Bravo!