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.
After a few years of research, I finally decided to purchase a freeze dryer. It was one of the best purchases I have ever made. The only regret I have is that I didn’t buy one sooner.
Evaluating efficiency and operational success is essential in selecting the right freeze dryer. One of the most important factors is capacity. For small batch production, pharmaceutical companies need precise and accurate freeze dryers, while food producers require large scale systems for mass production. Aligning a freeze dryer with the production requirements increases efficiency.
I have one of those hand held heat guns (inexpensive from HF), but I was afraid of accidently burning the insulation. My gun gets very hot! I do the same technique with a fan, shock the ice and listen for the cracks as it separates from the chamber wall.
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 chamber as well as your trays are cleaned frequently.
Hopefully I said that in a way that makes sense! As well, does it matter which port is used as "in" and which as "out"?
So I corrected the oversight - I drilled and tapped the elbow to add the port. Here is a picture. It worked great today when I flushed the pump to clear out the gunk.
We're passionate about helping Canadians experience the incredible benefits of freeze drying with Harvest Right. Our team is dedicated to providing you with a world-class experience from start pharmaceutical freeze dryer for sale Canada to finish.
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.
Thirdly, I like to know what is in my food. When I process my own food, I know what is going in it. Also, I like to grow my own produce so when I freeze dry that, I know exactly where my food came from and how it was grown. Some commercially freeze dried foods contain preservatives.
5 Posted September 16, 2015 Thanks dsheidt. I was afraid that the AN8 fittings I could find might not be long enough to provide the space needed so that the oil could flow over the top of the filter, especially given my "disk" method of holding up the can.
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Howdy! My name is Morgan I’ve been prepping for over 10 years and teach others to be prepared for emergencies and Buy Now disasters. Learn more!