Most Australian homes were never built with a wine cellar under the floor. That is fine, because good storage is more about steady conditions than fancy racks. A cupboard in the right spot can do a decent job. The trick is knowing what harms wine and keeping it away from those things.
Heat is the biggest enemy in an Australian summer. Light and big swings in temperature come close behind. Get those three under control and most bottles will hold up well until you open them. Here is how to do that in an ordinary house or flat.
Why heat does the most damage
The Australian Wine Research Institute has published technical guidance on how heat and light affect bottled wine. It warns that high storage temperatures have a marked effect on shelf life. Its note says a place that sits above 25°C for long periods, or reaches 40°C for short periods, can affect wine quality. Plenty of garages, sheds and car boots hit those numbers on a hot day.
Heat can also push the cork. The same note explains that wine expands as it warms. That can cause leaks or move the cork in the neck of the bottle. If you ever see wine seeping out under the capsule, heat is one possible cause.
Finding a cool spot in an ordinary home
The institute suggests a cool and dry location at about 15 to 20°C. Few homes hold that range all year without help, but you can get closer than you might think. Look for an inside cupboard on the south side of the house, away from the afternoon sun. Avoid spots next to the oven, the back of the fridge, a heater or a hot water system.
A low cupboard is usually cooler than a high one, since warm air rises. A spare wardrobe or the space under the stairs can also work well. Interior walls tend to stay steadier than walls that face the weather. None of this needs special gear, just a bit of thought about where the heat goes in summer.
Keep the temperature steady
Steady conditions matter as much as the number itself. The institute recommends insulated or temperature controlled storage that keeps swings in temperature and humidity to a minimum. A spot that stays fairly even is a better bet than one that swings hard between cool nights and hot afternoons. It also suggests using temperature loggers to check what is really going on.
A cheap digital thermometer that records highs and lows does a similar job at home. Leave it in your chosen spot for a week in January and check the readings. If the peaks sit well above 25°C, move the wine or find a cooler place. It is a small step that tells you far more than guesswork.
Keep wine out of the light
Light is the second problem. The institute notes that light can lead to off flavours in bottled wine. Direct sunlight is worse than indoor lighting, so a sunny bench or a window ledge is a poor home for bottles. A closed cupboard or a box with a lid solves the issue quickly.
Glass colour plays a part as well. According to the same guidance, amber glass is the most effective at blocking the shorter wavelengths of light. Plenty of white and rosé wines come in clear or pale bottles, which offer less protection. Those are the bottles to keep in the dark first.
Lying bottles down or standing them up
The institute’s advice is to store wine with the cork in contact with the wine. That is why traditional racks hold bottles on their side. Lying a cork sealed bottle down keeps the wine against the cork the whole time. It is an easy habit to build into any storage setup.
Screw caps are a different story, and a great many Australian wines are sealed this way. A screw cap does not rely on contact with the wine, so those bottles can stand upright or lie down. Choose whatever fits your space best. If you have a mix, put the cork sealed bottles on their sides and stand the rest.
What about the kitchen fridge?
It is tempting to keep every bottle in the fridge. For whites you plan to drink this week, that is perfectly sensible. For longer storage, the institute notes that compressor vibration could affect wine quality over time. It also admits it has not found research on this point, so treat it as a caution rather than a firm rule.
A kitchen fridge is also cold and dry, and the door gets opened many times a day. A dedicated wine fridge holds a steadier temperature and gets opened far less often. One is worth a look if you buy wine to keep for years. For a dozen bottles you plan to open over a few months, a good cupboard is usually enough.
Wine in other formats
Not all wine comes in a glass bottle with a cork. Cans, casks and pouches are popular for picnics and the beach. The same basics of heat and light still apply, so keep them cool and out of the sun. Our piece on canned wine covers how that format differs from bottles.
Which wines are worth the best spot
Plenty of everyday wine is made to be enjoyed soon after you buy it. Some bottles reward patience, and those deserve the best spot you have. If you have picked up something special, such as one of the rare Australian wines we have written about, give it the coolest and darkest place in the house. Bold red wine varieties are often the bottles people choose to put away.
Once you have a few good bottles stored, opening them with friends is half the fun. A small wine tasting party is a relaxed way to compare a stored bottle with a younger one. Keep the pours modest and have water and food on the table. That way everyone enjoys the wine and the evening.
Frequently asked questions
What temperature should I store wine at?
The Australian Wine Research Institute suggests a cool and dry location of about 15 to 20°C. It warns that long periods above 25°C can affect quality. Short spikes to 40°C can also do harm. Aim for a spot that stays fairly steady through the year.
Do screw cap wines need to lie down?
No, they can stand upright. The advice to lie bottles down is about keeping wine in contact with the cork. A screw cap does not need that. Lie down only the cork sealed bottles.
Can I store wine in the garage?
Usually not over summer. Many garages get very hot on warm days and swing a lot between day and night. Those are the conditions the research warns against. An inside cupboard is a safer choice.
Is it bad to keep wine in the fridge for months?
For a week or two it is fine. The institute has flagged possible effects from compressor vibration over long periods, though it found no research on the question. A cool cupboard or a wine fridge is the better long term option.