We purchased a medium Harvest Right freeze dryer with the upgrade to an oil-free pump in early 2022. Ours is now an outdated model with only 4 trays.
The operation of a freeze dryer depends on the brand (and sometimes the model). Some brands require a lot of input, specifying exact freezing and drying times and temperature limits. Others have quick start buttons and pre-programmed recipes to get you going fast.
Using the S-blade attachment makes short work of chili peppers and turmeric, while the dicing function has been a life-saver when chopping huge batches of onion, carrot and celery to make mirepoix.
Choosing between an oil-free pump and a premier oil pump for our Harvest Right freeze dryer was a tough decision at the time. But with the benefit of hindsight and having operated both, we would absolutely choose the premier oil pump if we had a do-over.
Regarding vacuum pumps, the Premier (oil) pump is much quieter than the oil free pumps. I have to listen closely to know my Premier is running. And I can buy two oil type pumps for the cost of one oil free pump.
No late-night or mid-workday dashes to the garage to empty the freeze dryer and package up our food. A lesson we learned the hard way when our first batch of food finished in the middle of the night!
Refrigerated, frozen, and canned food just don’t last very long. Freeze dried food will last up to 25 years and does not need to be to be rotated like other foods. Freeze dried food is perfect for home storage.
Once you’ve freeze-dried the food, you can package it, eat it, or reconstitute it with water. Packing the food in mylar bags with oxygen absorbers is ideal for long-term food storage. We’ve already reviewed those with dehydrated and freeze-dried food in mind:
Proper trays ensure even distribution of the material being dried and facilitate efficient moisture removal.
But, freeze dryers can handle a wide range of food and retain nutritional value (and flavor!) much better than dehydrators. They also give the food a massively long shelf life, extending some perishable foods to over 25 years!
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