A New Freeze Dryer – Part 3, by Captain Nemo
(Continued from Part 2. This concludes the article.) Testing the Food There are a few ways to test for dryness of your foods. You can weigh the food before and after, and then put it back in for a 2-hour Extra Dry cycle and weigh it again. If it changed weight, then the food wasn’t dry. This also helps determine how much water is needed for rehydration. The next is a moisture meter, but that doesn’t always work on small foods like berries or peas. Another is to use a thermometer. If there’s ice still present the food will be …