“””Drink beer everyday and you’ll never notice the change.””
After about a dozen they all taste the same.
I suppose the Whiskey test for covid 19 would work with beer. Pour a beer and sniff the glass to get the fragrance. Then drink the glass of beer. If it smells ok and taste ok. Repeat as necessary. I checked me 12 times last night. I don’t have covid but I peed a lot. :)