The shelf heaters can be set to automatically control the rate of sublimation during the primary drying cycle.
With that said, I’m married to a woman who puts me to shame with her mechanical maintenance abilities, so after a couple of struggles with changing the oil she now has it down to an art.
It makes the processing time faster, which means less wear on the machine. If I am preparing fruit, I typically slice it and put it on a baking sheet.
the "real" vacuum pumps on those machines, with ultimate vacuum levels a few more demial places over. I've chased many a leak in my time,but it was: A.
This includes setting as many as five different shelf temperatures, thus allowing the material to dry in phases, at different temperatures. For instance, you might have the material begin drying at 10ºF and increase the temperature in phases until the ultimate final dry temperature is 70ºF.
•The shelf heaters can be set to automatically control the rate of sublimation during the primary drying cycle. Through this process, the unit has control of the attendant vacuum pressure.
Vic says: 2 years ago Going on a second year with the freeze dryer. Considering getting another one. It really takes commitment, but it is very rewarding. The freezer is good also, but it needs constant source of electricity, and the storage is limited to the size of the freezer.
This includes setting as many as five different shelf temperatures, thus allowing the material to dry in phases, at different temperatures. For instance, you might have the material begin drying at 10ºF and increase the temperature in phases until the ultimate final dry temperature is 70ºF.
Drying things out played a roll as well as the added insulation. We had 3.5 weeks of constant rain here in central NC with humidity over 95% and temps near 95F in the beginning and tapering down to 80F by the end of the rain. The condensation on the front panel around the seal had water running down the front of the Freeze Dryer constantly during the entire cycle, not just the freeze cycle. I initially went into the FDer to simply stop the humdity from reaching the outer chamber shell and freezing.
“Astronaut” ice cream is a fun treat to make and is so easy. Just scoop ice cream onto the trays and freeze before processing.
7. Energy Efficiency: Evaluate the energy consumption of different models since this will affect your electricity bills get more info over time.
Cooked eggs can be freeze dried, but they tend to be rubbery when reconstituted. If you want to freeze dry cooked eggs, I recommend slightly undercooking them and then rehydrating them with boiling water. It will finish cooking them without making them rubbery.
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.
Morgan is the founder of Rogue Preparedness. She has been a prepper for over a decade. She's a wife, mother of two daughters and is homesteading off grid. She teaches people how to be prepared for emergencies and disasters.