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
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Here’s a link to their available Harvest Right freeze dryer trays, just as further proof that they do resell Harvest Right equipment.
For the price of a large home freeze dryer one can have 48 servings of premium freeze dried beef delivered to their home every month for a year with promo code “jdr“.
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.
They come out as dry and hard as lumber. So, if you try to freeze dry a steak or roast, expect to break a tooth eating it.
There are certainly bad shops you want to avoid, and in today’s article, we’ll be taking a look at the best places to buy a freeze dryer, so we can avoid the worst.
A bit of background on me - I used to work in a sold state fabrication lab (university research lab) and had a lot of hands-on work with ultra-high vacuum equipment. The pumping we do for freeze drying was what was required to just start
Don’t buy freeze dryers from companies that lack certifications or a valid history of quality assurance.
Are we trying to rip people off? On the contrary, our beef cubes are actually an exceptional value considering the four-pack offers 48 adult servings with 24 grams of protein each.
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.
Run full system test with no food in chamber (results, 630 mTorr lowest steady reading - looking through the oil level window, some bubbling seen in oil even after an hour of Shop Now pumpdown - some "air" noises from pump)
I started by removing the 3 grocery bags that were holding the 2 thick bags that had at one time held the berries. Struck by how much it looked like a placenta - bag and all!
As long as the food is dried to a low residual moisture, vacuum packaging is safe. Remember, vacuum packaging is not a food safety process itself. In fact, removing oxygen from a package may make it more of a concern for the botulism bacteria to grow and produce toxin if there is a moist environment.