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.
In truth, I was also really worried my son would be cross contaminated and end up being sick for a week. The hostess was insistent on making something he could eat and I finally relented. Needless to say, he ended up being very sick from the food.
I found out the hard way about the anti-drainback seal when I first tried the filter and got... nothing. I did do some research afterward and learned, as you point out, that there are some filters than don't use the seal but by then I was committed. Fortunately, it wasn't all that hard to remove it, but definitely better not to have to.
After it’s processed, I weigh the tray again and subtract the ending weight from the beginning weight. That tells me how much water to add for reconstitution. I like to write on the mylar bag or jar lid how much water to add so I don’t have to guess when I am ready to reconstitute the food.
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!
Upon turning off the pump (no isolation valve on the pump - standard setup), the chamber pressure rose quite rapidly going to 2000 mTorr and continuing up in a couple of minutes or so.
The differing vacuum levels during the system tests would be consistent with either a door seal leak or an drain valve leak.
3) Inside the front panel I installed a plastic shield over the display card and a water deflector just below the hole to route the exterior condensation to an 11x17 pan beneath the FDer.
We sold a grainmill also, hyped by a friend who had several. Used it some also. Nothing happened and other things incl food was donated or tossed. Now retired, who has time or money to throw away again? not me.
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 Em excesso time. I like to add at least 12 hours when processing these foods.
In times of crisis or natural disasters, having a stash of freeze-dried meals can be a lifesaver. Your family's safety and well-being are priceless. Not only does a freeze dryer set you up to survive, it lets you control the quality and content of your emergency food supply.
How are freeze dryers shipped? Delivery is via FedEx Freight for most urban addresses, while website rural locations may use a last-mile delivery service. All deliveries include curbside service and require a physical address to schedule delivery appointments.
Control of the amount of time a material is held at the ultimate freeze temperature before the drying cycle is started.
If you have gluten sensitivity and not Celiac or a gluten allergy, you might be ok with gluten and gluten-free in the Buy pharmaceutical Freeze Dryer same machine.