Brewing your own beer is a good idea. Back in the days before microbreweries took off, I used to brew my own because the beer that was available in my area was just awful, flavorless crud. If you use a kit, it’ll cost you about half of what you pay in the supermarket. You’ll also avoid paying those beer taxes.
Another way to make sure you have plenty of yeast is to brew beer. You’ll have yeast coming out of your proverbial ears. I used to dump quarts of it when I was brewing.
LOL, I will pass on the beer, my dad made enough for both of us.
If you are having live yeast left over, mix it with flour and let it ferment, you will then have sour dough starter.
If you have dogs, they love it, as will the hogs and chickens.
We get weevils in our flour and that gets used for sour dough starter, for the animals, gives them a shot of vitamin b.
Don’t be surprised at how many ask you how to make it.
I do use it in cooking.