How to prevent frozen food from freeze-drying? I have one of those no-frost freezers and while it's awesome that I do not have to defrost it every once in a while, it has a nasty habit of freeze-drying everything I put inside it. This includes things like sealed trays of meat which I'd expect to remain stable since the water cannot escape the container.

I found this somewhat related question: Freezing meat in Tupperware vs freezer bag,  but the advice does not really work for me. I've tried packing the food tightly in plastic bags, but even then ice crystals begin to appear within the bag after a while and if I do not consume the food for a long time, the bag ends up being full of ice and the food within rather dryer than before.

The only thing that seems to work is when I buy some vacuum-sealed piece of meat which has absolutely no air inside - then there is no space for the ice crystals to form and the meat can be stored for extended periods of time. This would not work for things like bread and similar items though.

How do I prevent my food from freeze-drying without having the equipment to vacuum-seal it completely?
The way to prevent freezer burn, or at least delay it as long as possible, is to remove air.  Even fairly low-end vacuum sealers will help you here.  However, if you don't want to get one, or can't, the next best thing is to use freezer zip bags and employ Archimedes principle.  It's commonly used in sous vide cooking, but can certainly help to remove air for freezing.  Another option is to seal a zip bag most of the way, with a straw inserted.  Suck the air out, then, in one swift motion, remove the straw and seal the bag.  By the way, both of these suggestions would work for more delicate items, like bread.