Not literally the beer in your hand, but its maker and traditions?
I’m drinking an Alexander Keith from Nova Scotia, established 1820. I’ve not done any research to see if they’ve fudged that date at all (e.g. Continuous operation since 1820?)
I have here a Goose Island IPA. They’ve been around since, what the 90s or something. 1990s. I don’t know. Let’s see if I can look it up before the edit timeout…
ETA: 1988, with an expansion in 1995. And in more recent years a sellout to AB which concerned me, but they’re still good.
My daily drinking beer is from a brewery founded in 2017; the first delivery was just over a year ago, in fact! However the last beer I drank was from a much older brewery, they were founded way back in 2011.
Shiner Bock, from the Spoetzl Brewery in Shiner, TX since 1909. Wiki says it’s now available in 49 states. Who knew they had expanded that much? I was mildly surprised to find it in LA and OK restaurants in the last few years.
The only date that is important is when they were taken ober by AB InBev or SABMiller. If the answer is “never”, then you are drinking an “old” beer. There aren’t any in the US, Canada or Mexico. Unless you go to Wisconsin and buy a case of Point, which I grew up on in the 50s…
My last beer was a San Miguel, established 1890, still more or less intact, but 48% owned by a Japanese brewer.