Anybody ever turn an old vac oven into a freeze dryer

Heat + vacuum = “freeze dried” candy. I’ve made thousands of bags of candy with 2 Ai 1.9’s.

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Do you bake a cake in the same oven as your meatloaf? You’ll be ok. General cleanliness applies.

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:man_facepalming:t2:

This much water vapor will hurt that little pump. Cold trap or mole sieve column would protect the pump. With any oil sealed, rotary vane pump, I recommend running the pump deadheaded (close the valve closest to the pump inlet). Run for about 30 minutes before to warm the oil and 30 minutes after to process any vapor out of the oil.

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This 100%

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