Craft beer is one of those things that can be brilliant when it’s fresh and underwhelming when it’s not. A punchy IPA, for example, can lose its appeal far quicker than many fans expect, while a strong stout may continue serving for months. So yes, craft beer can go off, but whether that’s a problem or part of the journey depends on the style. Understanding shelf life, storage, and ageing potential helps you get the best out of every bottle or can. And when you’re ready to stock up, whether running to your local shop or searching to buy beer online, Beer Cartel makes it easy to find fresh releases and cellar-worthy picks that hold a permanent place in your refrigerator.
Can Craft Beer Go Off?
Yes, yes it most certainly can, and does. Although drinking expired beer won’t make you sick (at least not from nasty little germs, as nothing harmful will grow once a beer is properly fermented, in other words, it doesn’t spoil). When beer goes off, it’s the flavour and mouthfeel that take a hit.
The general rule is that craft beer is best served fresh, as the flavours and mouthfeel are at their optimum. This is typically considered up to three months from bottling/canning. After three months, the unique notes of the beer begin to decline, flavours start to fade, oxidation occurs, and the protein structure that gives the beer body starts to break down.
However, not all beers peak early and then let themselves go; some age gracefully like Keanu Reeves. Bottle-conditioned ales with an alcohol content of 9% or higher are perfect for ageing up to and even beyond a year. Through the ageing process, they undergo the same breakdown in flavour and structure as expired beer, though it’s this very process that actually improves the flavour of the beer. Rich undertone flavours emerge that may not have been perceptible before, and hop bitterness mellows out while malts take on dense, more honey-like flavours. Try putting away a few bottles of a strong beer like a barley-wine or a barrel-aged stout, and then open a bottle every few months to see how these beers age with grace over time.
If you’re looking to try both fresh craft beer and age-worthy styles, Beer Cartel’s best beer range makes it easy to build a lineup for drinking now and cellaring later.
How to Read Bottling and Canning Dates on Craft Beer
Knowing how to read a beer’s packaging date can help you figure out whether it’s still in its prime.
Some beers may just display a simple date identifying when they were bottled/canned. Others use Julian date format, which can look confusing at first but is fairly simple once you know what to look for.
Julian dates usually show:
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the year
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the day number within that year
For example, 18243 means:
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18 = the year 2018
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243 = the 243rd day of the year
That would translate to 31 August 2018.
Sometimes the year is shortened to a single number. So a code like 8324 would mean:
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8 = 2018
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324 = the 324th day of the year
That works out to 20 November 2018.
It might feel a bit clunky, but it’s a common system in the beer world and gives a reliable snapshot of when the beer was packaged. This may be a convoluted way to date beer, but it’s industry standard, creates a clear snapshot of when it was bottled/canned, and it’s easy enough to figure out.
Craft Beer Shelf Life by Style
Beer shelf life varies a lot depending on style. Some styles of beer need to be consumed fresh, whilst some can sit on the shelf for a long while and still be in tip top shape, like a prop with a grand tonal 45 minutes of pre-season cardio, yet somehow managing to play a full eighty minutes without cracking during the season debut. And we aren’t talking ageing here, just shelf life, though these robust qualities are heavily dependent on styles. Some styles need to be enjoyed young, while others are naturally more stable and can sit on the shelf much longer without losing too much character. Here’s a quick guide:
Hop-Forward and Lighter Styles
These are usually best within 120 days:
Darker Styles
These can often hold up for around 180 days:
Strong Beers for Ageing
These can often age for 12 months or more:
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Strong Bottle-Conditioned Ales
This is about shelf life, not necessarily ageing potential. Some beers remain stable for longer, while others.
Quick Points
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Drink fresh: Hazy IPAs, IPAs, Pale Ales, XPAs, Session beers, Kölsch, Wheat Beers
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Can sit a little longer: Lagers, Pilsners, Amber Ales, Brown Ales, Porters, Stouts
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Can age well: Belgian strong ales, Barley Wines, Barrel-Aged Stouts, Bottle-Conditioned Ales
Are Cans Better Than Bottles for Keeping Beer Fresh?
The debate between cans and bottles rages on; many craft beer drinkers opt for the traditional bottle over the can, but, cans may just be better. Because… Dastardly UV light be skunkin’ up ya beers (that’s the actual reason it’s standard to put lime in a Corona, they were almost always skunked. However, nowadays Corona uses tetra-hops, which are processed hops that don’t skunk.
Bottles, even brown ones which are said to provide 98% protection from UV, let UV light into beers, which in a matter of minutes can affect the enzymes and proteins in the beer, leading to off-flavour notes and aromas, i.e. skunk. Basically, what happens is the hop-derived molecules in the beer break apart and recombine with a sulphuric compound and in worst-case scenarios, create a distinct wet cardboard flavour. Furthermore, the slightest prevalence of UV light can also dramatically reduce the shelf life of exposed beers.
Whereas cans protect beer from UV light, keeping the skunks at bay and the shelf life to an optimum. So if freshness is the priority, canned craft beer is often a smart pick.
What Can You Do With Old Craft Beer?
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If your beer's just a little past its prime, turn it into a shandy, mixing it with lemonade or something citrusy can really lift the flavour. Or try it in a beer cocktail, like a michelada or a beer margarita. Drinks like the midnight-moon or Shaky Pete have enough extras to cover up any stale notes.
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A couple of drops of Angostura bitters can hide minor flavour issues and honestly, make the beer more enjoyable. If you like cooking, throw the beer into a batter, stew, marinade, braised meat, or even beer bread. It still gives a nice richness.
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Sometimes, the beer still tastes alright, maybe just not as crisp, so you can simply drink it anyway. If you’re not picky, hand it over to a mate who's less fussy; everyone knows someone who won’t ask too many questions.
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You could always shotgun it if you’re just in it for a bit of fun and aren’t worried about the taste. For leftover bits, pour small amounts in your garden, an old beer can work as fertiliser, so it doesn’t totally go to waste.
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But if it’s just no good, if it’s flat, skunky, or seriously unpleasant, tip it out and move on. And honestly, pay attention to beer styles. Some beers are made for drinking fresh, others hold up well, and a few get better with age. You’ve got to know what you’re dealing with.
For more information on how to look after your beers and tips for optimal beer storage, check out our blog on the do's and don'ts of storing and cellaring beer right here.
FAQs
1. Does craft beer actually expire?
Technically, craft beer doesn’t “expire” the way milk does, but it can definitely go downhill. As long as it’s brewed right and sealed up tight, it’s still safe to drink. But over time, the flavour, aroma, and all that freshness start slipping away. What you end up with tastes pretty different from what the brewer wanted.
2. How long does craft beer last?
Best bet? Drink most craft beers within three months of when they’re bottled or canned, especially hoppy or lighter ones. Darker beers usually hang on for about six months. Big, strong beers like barrel-aged stouts or barley wines? They can actually get better over a year or so.
3. Which beers should be drunk fresh?
Hop-heavy styles, IPAs, Pale Ales, Kolsch, Amber Ales, all taste best right after they’re brewed. Those bright hops, sharp flavours, and lively feel fade fast. If you want the beer how the brewer dreamed it up, go for the fresh stuff.
4. Which beers can be aged?
Big beers, especially the bottle-conditioned ones over 9% ABV, barley wines, and barrel-aged stouts, are perfect candidates for aging. The hops settle, and richer, malt flavours develop. If you treat them right, store them cool and dark, they’ll get more interesting over time, sometimes for years.
5. Do cans keep beer fresher than bottles?
Can do a great job here. They block out light completely, unlike bottles, yep, even the brown ones. Light messes with beer, makes it taste skunky, and cuts its shelf life. Both cans and bottles can be great, but cans just protect the beer better if you care most about fresh flavour.
6. Can you still drink old beer?
Sure, usually you can. If it’s brewed, packaged, and stored properly, it’s unlikely to make you sick. Old beer just might taste tired, stale, flat, maybe a little off. Whether it’s still worth drinking depends on the style and, honestly, how picky you are about flavour.
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Every beer fan has found an old can at the back of the fridge and thought about it before cracking it. Sometimes it still holds up, and sometimes it really says that freshness does make a difference. That’s part of the charm of craft beer, some styles are best enjoyed young, while others need a little patience. Once you know the difference, every session gets better. And if you want to keep discovering fresh releases, explore different styles, and always have something interesting on hand, Beer Cartel’s beer subscription and mixed packs make it easy to keep your fridge stocked the smart way. Cheers to freshness in every sip!