harvest right commercial freeze dryer Secrets
harvest right commercial freeze dryer Secrets
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I am looking for a more defined "heuristic" curve based upon the internal temperature. I am sure that your engineers probably have tables for such things. I also know that different foods freeze at different rates, that is why I am asking for a heuristic answer.
Mylar bags keep food fresh for years The enemies to freeze dried food are moisture, oxygen, and light. Ideally, the food should be stored in a mylar bag with an oxygen absorber. The bag should be heat sealed to keep air from getting in. For best results, use a mylar bag 7 millimeters thick.
Freeze dried milk Most dairy products freeze dry quite well. I love freeze drying milk. I measure the milk, pour it on the trays, and process it. Then I package either in a canning jar or a mylar bag, depending on how soon I will be using it.
Modular and versatile freeze-drying systems are also in high demand and this is changing the landscape of the market. Certain companies need equipment that can handle different sizes and types of products. This is being done by pharma machinery manufacturers who provide these industries with better scalable models.
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.
It’s super simple, if you aren’t running an Oil Free pump (which we strongly suggest), you should change the vacuum pump’s oil every 20-30 runs (approximately once every month or two with daily use) and ensure the interior Know More chamber as well as your trays are cleaned frequently.
1) I installed a 3/4" wide high density closed cell foam in the gap between the front of the chamber and the back of the front panel - just what Harvest Right suggested except all the way around (the first picture shows the gap). Use your fingers to push it into place. It needs to be tight against the inside panel. I then installed a vapor barrier around the entire FDer chamber. I used 7mil plastic and clear packing tape.
This includes setting as many as five different shelf temperatures, thus allowing the material to dry in phases, at different temperatures. For instance, you might have the material begin drying at 10ºF and increase the temperature in phases until the ultimate final dry temperature is 70ºF.
And therein lies the cons to buying a freeze dryer. It takes time to make them cost effective. Depending on humidity in your area, a single run can take up to two days to complete.
A funny lesson I learned is that we no longer freeze-dry many fruits or vegetables. I know this goes against what most preppers say but I’ve come to a different conclusion. We did tons of fruits and vegetables at first but considering the time it takes we found that we are better served by spending that precious freeze drying usage on more expensive items like meats, eggs, and complete meals.
Unlike other conventional methods of drying, the original structure of the food is preserved Know More with freeze-drying which ensures better quality for the consumers.
When considering a freeze dryer purchase, it's essential to understand the different types available:
Freeze drying seasoned squash and zucchini One of my favorite things to freeze dry is vegetables. It’s so easy to put them in soups or casseroles. Once onions or garlic are processed, they are great to add to food.
And therein lies the best piece of advice I can offer on this topic: Keep your freeze dryer running. Downtime is wasted time. Some items take a while. Others are quick. But keeping the freeze dryer going almost non-stop is the key to getting the bang for the buck.