Why do you need a freeze dry machine? There are many ways to preserve food to eat for later. Some people will just put food in containers and then stuff them in the freezer. Then there is the method of freeze drying. It sounds look too much effort but it is worth it. Your food will stay in the same shape and it will stay in high quality. Plus, it will be easy to rehydrate your food when you are ready to eat it. Now, there are machines that will do the job of freeze drying without too much effort on your part. But do you really new a freeze dry machine? There are benefits to having one and it can make life so much easier around the kitchen.
What does a freeze dry machine do? Freeze drying is where you take your meal of choice and rapidly freeze it. Then you put through the process of high vacuuming to remove any trace of ice by sublimation. It may sound complicated but it that is why there is a machine for that. There are only four steps that need to be completed for the process to go without any problems. You have to pretreat, freeze, primary dry, and then secondary freeze. Four steps that sound like they would be time-consuming. With a freeze dry machine, you will be freed up to do other things around your house. When you are done, all you have to do is to put the freeze-dried food away to eat later.
What should you look for in a freeze dry machine? Just like everything else you are shopping for, you will need to do the research to make sure that you are getting your money’s worth. You have to ask yourself a few questions before you purchase your freeze dry machine. The first thing to look for is how much moisture do you want removed from your food? Not all freeze dry machines are made equal. Some will drain out more moisture than others. Think about how much you want removed from your food and work from there. Next, you have to ask, stoppering under vacuum for long term storage or transport required? To answer this, do the research. Another question to ask is what type of food are you planning to freeze-dry? This will save your time, money, and headaches. If you are still in doubt, look up the reviews of your product of choice. What are customers saying about the product? Compare notes before you make your purchase. One more thing to do is to look at the price. The last thing you want is to go broke after buying your freeze dry machine.
Source
https://www.labconco.com/articles/5-questions-to-ask-before-buying-a-freeze-dryer