Wine storage basics: temperature, humidity, light and what matters less

Storage is the least exciting part of collecting, and it does more for your wine than anything else you control. A bottle kept cool, dark and still for ten years can taste the way its maker intended. The same bottle kept above the stove can be tired in two.

The good news is that you don't need a purpose-built cellar to store wine well. You need to understand what wine dislikes and find the spot in your home that avoids it. This guide covers the essentials, a few things that matter less than people think, and a short checklist you can use today.

Temperature matters most

Of everything on this list, temperature has the biggest effect on your wine.

The classic cellar temperature is around 55°F, or about 13°C. That's roughly the temperature of the deep underground cellars where wine has traditionally been kept. In practice, anywhere from about 50 to 59°F, or 10 to 15°C, works well.

Two rules matter more than the exact number:

• Avoid heat. Warm storage speeds up aging, and real heat damages wine. Avoid keeping wine above about 70°F, or 21°C, for long periods. A few hours in a hot car or a sunny window can harm a bottle. Heat-damaged wine often tastes cooked or flat, and the cork may be pushed up or show sticky seepage.
• Keep it steady. Large, frequent swings are hard on wine. As the wine warms and cools, it expands and contracts, which can work the cork loose and let air in. A spot that sits at a steady 60°F is generally better than one that swings between 50 and 70°F every day.

Colder than 50°F isn't harmful in itself, but wine ages more slowly there. Just don't let it freeze. Frozen wine expands, and it can push out the cork or crack the bottle.

There's no need to store reds and whites at different temperatures. Everything goes at the same cellar temperature, and you adjust it when you serve.

Humidity

Humidity is mainly about the cork. A cork that dries out can shrink and let in air, and that's a slow route to oxidation.

A common guideline is a relative humidity of roughly 50 to 80 percent, and many cellars aim for somewhere in the middle. Very dry air is mostly a concern for bottles you keep for many years. Very damp air won't hurt the wine, but it encourages mold and can ruin labels, which matters if you might ever sell.

Most basements and wine fridges sit in a reasonable range. If your space is dry, a small dish of water or a humidifier helps. If it's damp, a little airflow helps.

Light

Light, especially sunlight and other ultraviolet light, can damage wine. It can cause stale, unpleasant aromas, sometimes called "light strike". Wines in clear or pale bottles, like many rosés, whites and sparkling wines, are most at risk, but no wine benefits from light.

The fix is easy. Keep bottles out of direct sunlight, choose a closet or cupboard over an open shelf by a window, and switch the cellar light off when you leave. If you buy a wine fridge with a glass door, look for UV-resistant glass.

Vibration

Constant vibration is often said to disturb wine's development and stir up sediment in older bottles. The evidence on everyday vibration is limited, so don't worry about trucks on the road or people walking upstairs.

What's worth avoiding is constant, direct vibration, such as storing wine on top of a refrigerator, a washing machine or a speaker. Those spots tend to be warm as well, so there are two reasons to choose somewhere else.

For older wines with sediment, a little care helps. Stand the bottle upright for a day or so before you open it, so the sediment settles to the bottom.

Bottles on their side

Store cork-sealed bottles on their side. That keeps the wine in contact with the cork, so it stays moist and keeps its seal.

This matters most for bottles you plan to keep for more than a few months. Bottles you'll open in the next few weeks can stand without any harm. Wines with screw caps or other non-cork closures don't need to lie down at all, although racks often make it easier to store them that way.

What matters less than people think

Storage advice can be intimidating, so it helps to know where you can relax.

• The exact temperature. Steady matters more than precise. A cellar at a stable 58°F is doing its job.
• Fancy racks. Wine doesn't care what it sits on. Any sturdy rack, or the original case turned on its side, works fine.
• Short-term storage. Bottles you'll drink within a few weeks are fine almost anywhere that isn't hot or bright, upright included.
• Everyday vibration. Ordinary household movement isn't worth worrying about. Avoid sitting bottles on appliances.
• Humidity for young wine. For bottles you'll drink within a few years, moderate humidity is a nice-to-have.

Where to store wine at home

Most homes have at least one decent spot.

• A basement or interior closet on a lower floor, away from heaters and outside walls, is often the coolest and steadiest place you have.
• A wine fridge is a sensible upgrade if you don't have a naturally cool spot. It handles temperature, darkness and some vibration at once.
• The kitchen fridge is fine for a few weeks, but it's too cold and dry for long-term storage, and the door is opened constantly.
• Professional storage makes sense for valuable wine or a collection that has outgrown your home. A good facility also helps provenance if you ever sell, which we cover in our guide to what your wine collection is worth.

Spots to avoid include the kitchen near the stove or dishwasher, the top of the fridge, a garage that heats up in summer, an attic, and anywhere in direct sun.

A quick wine storage checklist

Use this to check the spot you have now.

• Temperature sits roughly between 50 and 59°F, or 10 and 15°C
• Temperature stays steady from day to night and season to season
• Never above about 70°F, or 21°C, for long, and never freezing
• Out of direct sunlight, with lights off when no one is there
• Not on or next to an appliance that vibrates or gives off heat
• Cork-sealed bottles you're keeping for months lie on their side
• Humidity is moderate, not bone dry or damp enough for mold
• You know where every bottle is

A cheap thermometer that records the high and low is worth buying. Leave it in your storage spot for a week, across both warm and cool days, and you'll know whether it's working.

Know where every bottle is

That last item on the checklist is easy to overlook. Once a collection spreads across a closet, a wine fridge and a box at a friend's house, it's easy to lose track of a bottle until it's past its best. Our guide to drinking windows covers how to judge that.

Selara Sommelier records a storage location for every bottle in your cellar. How far you can take that depends on your plan.

• Premier Cru, the free plan, covers one cellar location with flat storage.
• Grand Cru covers up to 3 locations, with nested bins up to three levels deep, for example Room, then Rack, then Slot.
• Grand Cru Exceptionnel covers unlimited locations with nesting up to ten levels deep. It also adds spatial bins, a visual map of each location that shows where your wines sit in the room.

While Selara Sommelier is in the final stages of beta testing, every user is invited to use the free Beta tier, which includes everything in Grand Cru Exceptionnel.

If your inventory already has a location column, the importer maps the storage names in your file to locations in Selara Sommelier. You can match them to locations you've already set up, create new ones, or choose a default location for the import. Our spreadsheet migration guide walks through it, and the cleanup tips help you tidy location names before you start.

Start with the spot you have

You don't need a perfect cellar. Find the coolest, darkest, steadiest place in your home, lay the bottles down, and check the temperature now and then. That covers most of what good storage does. If you're just getting started, our post on building your first collection has more tips for the early days.