It’s easy to tell when your leftovers have mutated and grown into a new life form. It’s more difficult to notice that change in a year-old can of beer. As a handy guide, most beers now have a “pull by” date, which tells the store when to take the beer off the shelf. That date is usually 180 days after bottling, although very strong IPAs will probably start to break down after three months. Other beer have a “born on” date, indicating when it was actually bottled so you can decide for yourself whether you think it’s fresh enough.
I will also be posting an article about aging beer and which beers can be aged.