I read where you could safely consume old booze only if it was “distilled”. It should keep forever. Not distilled - do not drink.
I bought a large amount of distilled bottles of booze at an estate sale and not being a drinker sold them on craigslist. Not sure if what I did was legal or not.
I opened it with some friends to celebrate the Celtics 1984 Championship and ended up in the hospital 14 hours later.
Probable diagnosis was acetate poisoning.