· 5 min read
How to Store Beer: Light, Temperature, Upright or Sideways (and Why Skunky Happens)
Keep beer dark, cool and upright. How to store bottles and cans at home, why light makes beer skunky in minutes, and which storage myths you can ignore.
- how to
- storing beer
- skunky beer
- beer
Store beer dark, cool and upright. Light is the fastest way to ruin a beer, heat is the slowest, and laying bottles on their side like wine does nothing for them. Here is how to keep bottles and cans tasting the way the brewer intended, why light turns beer skunky so fast, and which storage myths you can ignore.
Light: the fastest way to ruin a beer
That "skunky" smell some beers have is not age and not a bad batch. It is light.
Certain compounds in hops are light-sensitive. When beer is hit by strong light, a photo-oxidation reaction creates 3-methyl-2-butene-1-thiol (MBT), an intensely aromatic sulfur compound with a skunk-like smell. The blue part of the visible spectrum, roughly 350 to 500 nm, is the most efficient at triggering it (The Oxford Companion to Beer, "lightstruck"). It is a close chemical cousin of the thiols skunks actually spray, as the University of Bristol's Molecule of the Month explains.
How fast does it happen? According to the same Oxford Companion entry, in strong sunlight the reaction is almost instantaneous: tasting panels can detect it after less than 10 seconds of full sunshine. Under fluorescent lighting it still happens, just more slowly, over days or weeks.
Which containers protect beer best
- Cans and kegs: the best protection, since no light gets through at all.
- Brown bottles: highly effective, at least against short or low-intensity exposure.
- Green and clear bottles: little to no protection.
Practical takeaway: a six-pack of clear bottles sitting on a sunny patio table is in trouble before you finish the first one. Keep green and clear bottles in the box, in the cooler or in the fridge until you open them.
Temperature: cool and steady
Heat works slower than light, but it works. Beer kept warm for weeks ages faster: hop aroma fades and flavors turn flat or stale. Cold slows all of that down.
- The fridge is the simplest storage for beer you plan to drink soon.
- A cool, dark closet or basement works for anything that will not fit.
- Avoid hot spots: a garage in summer, a car trunk, the top of the fridge, the shelf above the stove.
What about the old idea that a beer that warms up after being cold is "ruined"? One trip from cold to warm and back is not a disaster. The damage comes from heat over time, not from a single temperature change. When it is time to drink, our guide to chilling beer fast gets a warm bottle cold in minutes.
Upright or sideways?
Upright. Regular capped beer bottles are not wine bottles: there is no cork that needs to stay moist. Standing them up keeps the beer away from the cap and limits the surface of beer exposed to the air in the neck. If a bottle-conditioned beer has yeast sediment, storing it upright also lets the sediment settle at the bottom instead of along the side, which makes it easier to pour cleanly.
Cans can go any way you like, but stacking them upright makes them easier to grab and count.
How long does beer keep?
For most beers, fresher is better. Hop-forward styles like IPAs are at their best young: that bright, citrusy aroma is the first thing to fade. Check the date on the can or bottle and drink hoppy beers first.
Some strong, dark styles are brewed with aging in mind and can develop over time when stored cool and dark. That is a hobby of its own; for everyday beer, the rule is simple: buy what you will drink, store it well, drink it fresh.
Storage myths you can ignore
- "Beer should be stored on its side like wine." No cork, no reason. Keep it upright.
- "Once cold, always cold, or it goes bad." One warm-up will not ruin it. Long-term heat is the real enemy.
- "Green bottles are fine in the sun." They offer little to no protection against light.
- "Cans make beer taste metallic." Modern cans are lined, and they block light completely. Pour into a glass if you want the full aroma.
Setting up a home beer spot
If you are building a corner for beer at home, put the storage where there is no direct sunlight, keep a shelf in the fridge for what you will drink this week, and leave the rest boxed in a cool closet. Our guide to a home bar on a budget covers the rest of the setup, from glassware to the opener that lives on the counter.
For that counter, the CapBlast is a one-hand lever opener in stainless steel, small enough for a keyring. Keep it next to the fridge so nobody goes hunting for an opener with the door hanging open.
And if you want the opening to be part of the show, the Beer Mortar sends the cap flying with one palm strike. Aim it away from people, pets and anything breakable, and keep it away from kids.
The short version
Light skunks beer in seconds, so keep bottles out of the sun, favor cans or brown glass, and leave green and clear bottles in their box. Heat ages beer over weeks, so keep it cool and away from hot spots. Store bottles upright, drink hoppy beers fresh, and do not worry about a single warm-up. Then open it properly: no opener at hand? Here are seven ways to open a beer without a bottle opener.
