I prefer going with a dehydrator and vacuum packer. This way you control what’s in the food, some dehydrating process add chemicals to extend the life of their products that while not bad for you but are not necessarily good for you and will definitely change the taste of the food when rehydrated. You can also determine the size of the packaging, which can save space and weight. My last reason (that I’ll put in this thread) is the types of foods, this way you can have the things that you like (almost anything can be dehydrated) and not have to choose from things you wouldn’t necessarily take with you if give your preference. You can also freeze dry foods also, there are several web sites that detail the proccess.
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