I've been looking into that lately and I have to admit... I have no idea how to mine and smelt tin or copper, let alone iron.
Learn to distill or ferment alcohol to barter with. Its a valuable commodity when shtf. You can distill alcohol as an antiseptic or for drinking. You'll need yeast. Here is a yeast recipe from potatoes. https://culinarylabz.com/2020/04/04/how-to-make-potato-yeast/
Another one I’ve been thinking of is learning how to make and work with leather. Shoes wear out fast when you’re on your feet all day working. Once industries shut down and all the stores have long since been looted people will be in constant need of new shoes.
where will you get the leather? Tanning is not a beginner's thing.
You can also use high abv alcohol as fuel.
Yes forgot to put fuel good call out
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