Sure. Hard to get all the details into a comment that's already too long.
In general, however, strong beer keeps much longer than weak beer. However, even if it does sour, that doesn't mean it's harmful to drink.
In general, however, strong beer keeps much longer than weak beer. However, even if it does sour, that doesn't mean it's harmful to drink.
While I agree in general with what you've said, this line is wrong. Strong beer will turn sour too. Acetobacter is good up to 10-15%, it's how we get malt vinegar and wine vinegar. All it needs is ethanol, oxygen, and time.