Also homebrewer here, you’re correct, that yeast can be reused several times, limited by the yeast mutating away from what you want, though many brewing yeasts have been reused for centuries
The yeast is only half done with its intended activity too. What it tries to do:
Digest sugar into poisonous ethanol (which we quite like)
Wait, trusting the ethanol to keep everything else out
Digest the ethanol to acetic acid (vinegar)
Wine vinegar is grape juice done to brewers yeast’s plan
Also homebrewer here, you’re correct, that yeast can be reused several times, limited by the yeast mutating away from what you want, though many brewing yeasts have been reused for centuries
The yeast is only half done with its intended activity too. What it tries to do:
Wine vinegar is grape juice done to brewers yeast’s plan