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.
Maintenance Simply filter and replace the oil every 20–25 cycles. (The oil can be filtered and reused one time.); this is a straightforward task that takes only a couple of minutes.
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.
5. Maintenance: Understand the maintenance requirements of the machine. Some units require more frequent servicing than others.
When my son goes to college in a few months, we will send him with many freeze dried meals and continue to mail them to him as needed. Most colleges don’t have safe gluten-free options, and while in an ideal world my son would be able to cook all his own food, I know that’s not practical or likely. Freeze dried meals on hand are an easy way to keep from being cross contaminated at the cafeteria!
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.
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.
The pros and cons are easy to understand. In fact, there really is only one pro and it’s a huge one. YOU control the food you’re storing away for yourself and your family. Those who are willing to spend the time and money to freeze dry their own food should do so as long as they’re going to be committed.
We love to get together with family during the holidays. Our family is massive and my son is the only one who is gluten-free. Although our family members are sympathetic and want to be accommodating, they don’t always realize that gluten is in found in more than just bread.
Foods with lots of seeds can be freeze dried but usually take longer. That’s because the seeds hold moisture. If you’re processing strawberries, raspberries, blackberries, tomatoes, and kiwis you’ll need to add extra time. I like to add at least 12 hours when processing these foods.
A description of the product, including details such as build quality, materials used and reasons to purchase.
Karla Abreu says: 2 years ago I just think pressure canning is the easiest way to preserve food and know it is totally sterile. And it is relatively get more info easy
Both pumps come with an oil mist filter. However, the Industrial Pump’s oil mist filter allows for no oil spray at all and it will last much longer.
•Control of the shelf temperature during the dry cycle. This includes setting as many as five different shelf temperatures, thus allowing the material to dry in phases, at different temperatures.