Yesterday in the comments, Amber asked if anyone has tried to make vinegar from scratch.
My partner and our 9yo son went apple picking one gorgeous autumn day this fall. With their incredible harvest, we made crisps, baked apples, and apple sauce. We also dried hundreds of slices in the dehydrator. Some of them we packed up as holiday presents. Some we enjoyed as car snacks on our interminable winter drive to our families. And others we'll enjoy, cooked into pies, as the winter proceeds.
As we cut up the fresh apples in preparation for those treats, we put all the cores and skins and seeds in a big jar. When it was about two thirds full, I topped it up with water and then covered with a tea towel. The mixture stood on our indoor porch for a while, waiting for fermentation.
I checked out it occasionally, never quite sure what I was supposed to be checking for.
And I just harvested the results:
...a lovely harvest of blue-green mold.
Most blue-green mold won't kill you. If it is Aspergillus, it can cause ear infections. If it is Penicillium, it can cure them. But even in the best case, antibiotic salad dressing is pushing the term "health food" too far for my tastes.
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What is the wildest thing you've found yourself doing in the name of sustainability?