She even talks about how to substitute gelatin for the eggs in recipes, for those who are worried about eggs in a slow cooking method like solar ovens. So about a month ago, every time I made bread or muffins, I threw some in a jar too. I'll start posting the different ones I tried & how they turned out.
I did have 2 come unsealed after a few weeks while storing them. One was a reusable lid & one was a regular lid. I'm not sure why. But maybe keep an eye on them.
This was pretty easy to do. After they're cooked, clean the rims, put a canning lid on immediately, & bring it inside. It will seal as it cools.