![]() ![]() With a freeze dryer, you could dehydrate all sorts of liquids to make powdered milk, powdered coffee, etc.įor more about which foods can (and can’t) be dehydrated, read: ![]() Likewise, you can’t really dehydrate liquids like milk or yogurt because it is too messy and takes an extremely long time. The same is true with many raw vegetables. Dehydrating doesn’t work well with eggs because the proteins become too hard and chewy. You can dry many more types of food with freeze-drying than dehydrating.įor example, it is possible to freeze-dry raw or cooked eggs in a freeze-dryer. You can hang foods to dry or use the sun, an oven, or a dehydrator machine. It is a straightforward process that uses heat to evaporate moisture from food. Dehydrating:ĭehydrating is one of the oldest forms of food preservation. You can read more about freeze-drying here. It involves freezing the food and then reducing the pressure in the chamber, which causes the ice to evaporate. Process Freeze Drying:įreeze drying is a reasonably new food preservation method that utilizes lyophilization: a process in which ice is turned directly into a gas. However, dehydrating is much cheaper and easier, so it is usually the better choice for people on a budget or taking the DIY approach. You can freeze-dry more types of foods, and they usually retain their quality better than dehydrated foods. The process removes more moisture, so the dried foods can last years or even decades if stored properly. In terms of shelf life, freeze-drying is hands-down better than dehydrating. Here’s how they compare in terms of:įreeze Dried vs. I dug in deep to honestly look at freeze-drying vs. Many spout numbers about how much nutrients are retained and moisture removed, but without any info to back up these “facts.” Most articles about the difference between freeze-dried and dehydrated are from brands who want to sell you their freeze-dryers or freeze-dried products. ![]()
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