I would prefer those fittings to have internal Este rings and knurled thread on ports (similar to R134a vacuum gauge sets) that do not require high torque compression fittings. Finger tight and you are good to go. You spot a leak, change the O ring and you're back in business.
Let's do a simple math exercise. Non Frozen food put in freeze dryer at an ambient temp of 70F needs to be at -40F before the dry cycle begins. things go linear, each hour the temps would drop the food by 12.
I thought an easier way to see what was happening would be to make a time lapse video of an entire freeze drying cycle. As I was about to prepare some apples for freeze drying yesterday, I thought it would be a good time to do that -- so out came the GoPro.
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.
By this point, most of my son’s friends know about his dietary restrictions and it doesn’t bother them. My son takes rehydrated freeze dried meals to school banquets and to other social gatherings.
Freeze drying lets you say goodbye to food waste by extending the shelf life of your food. Every dollar you save on groceries goes back into your pocket.
14 Posted December 16, 2015 On 7/31/2015 at 11:12 PM, TonyC said: Here is my first pass on a Vapor Trap... it is an old whole house water filter that I modified. It failed to reduce the moisture in the oil... I'm in the process of modifying it to catch and suspend the moisture in the container long enough for desiccant beads to absorb the water. The air flow comes into the inlet, down the central pipe to the bottom of the screen and filters up through the beads and out the top. I know this was like forever ago, but I thought I would respond anyway. I haven't been on much in a while, I only run my freeze dryer in the winter. So I think you'll find it's a lot harder to remove water vapor from a vacuum than just using desiccant, as the vacuum will just pull the water out of the desiccant.
Hence, the Industrial Pump is especially not affected by warm, ambient conditions. When temperatures rise, it will pull a vacuum far better than the Standard Pump. The Industrial Pump is just not affected by outside heat. It pulls the same deep vacuum even when it is in a warm environment.
This is why so many people are buying their own freeze dryers to use at home. The market is essentially cornered by Harvest Right, which isn’t a bad thing since their quality and customer service are both superb.
“Astronaut” ice cream is a fun treat to make and is so easy. Just scoop ice cream onto the trays and freeze before processing.
It appears that the ice build up inside the chamber sublimates as well as the ice in the food. Eliminate the ice and the process is faster, and less water ends up in your oil.
We packed freeze dried milk and cooked chicken strips as well as an assortment of snacks. One checked bag was dedicated to food, and it traveled very well.
You can leave meat covered with boiling water in the fridge overnight. For salsa, reconstitute with cold water and let sit 5 minutes.
Freeze dried Skittles are a favorite in my more info family. They end up with a crunchy texture. Other candies have a crunchy exterior and an airy interior.