Harvest Right Home Small Pro Freeze Dryer - Uma visão geral
Harvest Right Home Small Pro Freeze Dryer - Uma visão geral
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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.
4. Vacuum Pump Issues: If your machine is not reaching optimal vacuum levels, check for leaks in seals or hoses that could hinder performance.
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.
With the combination of pharmaceutical and food products needing to be more shelf-stable than before, acquiring ideal freeze-drying machinery is crucial. Modern freeze driers have much more sophisticated control of temperature, pressure, and moisture which guarantees the quality of the product as well as meeting regulatory standards.
Obviously things like ice cream and marshmallows you would want to let the freeze cycle run longer. When I'm ready to start the drying cycle, I open the door, remove the insulator, and check the temperature of the food on the trays with an infrared thermometer. As long as it's below -10F I start the dry cycle. A side note for TonyC, have you ever thought about attaching a mirror to each side of the tray rack to reflect the radiant heat back in to the trays? I've looked at some mirror finish stainless on ebay, and it looks like you could do it for about $quarenta. Not sure if it's worth a try or not. I would think it would let you get more water out in a cycle because the radiant heat wouldn't be warming the ice on the chamber walls. Just a thought.... Edited December 16, 2015 by Pipsqueak duplicate post (log)
How does freeze drying work? To put it simply, it freezes the food then goes through a sublimation process where it dries the food.
The bottom line regarding freeze-dried food is that hoe freeze dryers are an investment! An investment that pays you back and makes you more resilient in the process.
Take care of it, change the oil regularly, maintain it, and make sure to read the user manual carefully to keep it in good, working order. You might have to change a pump, change freon or general maintenance, but it’s pelo different than any other major appliance.
A bit get more info 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
I asked her what she was planning to serve and offered to bring something similar for my son so she wouldn’t have to worry about accommodating him. She said she didn’t want me to have to make food.
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Recently we took a trip to Hawaii. After doing some research, I found a few restaurants that I was fairly confident would be safe for my son. However, I also knew how expensive even regular groceries are in Hawaii, let alone gluten-free food.
If you don’t have the time or money, or if you believe the food crisis will hit hard very soon, then it makes more sense to buy freeze-dried food instead.
Freeze dried Skittles are a favorite in my family. They end up with a crunchy texture. Other candies have a crunchy exterior and an airy interior.