Wine Cellar Temperature: One Number, Held Steady

Set the wine cellar temperature to 12°C for every wine

A wine cellar needs one number, 12°C, not a range. The figure comes from cabinet maker EuroCave, and the limits around it come from Australian wine research.

EuroCave puts the ideal maturing temperature at 12°C

The maturing temperature is the one a bottle sits at while it is kept for the long term. EuroCave gives it as 12°C and says it applies to wine of any color. The same page asks for that temperature to be even from the top of the cabinet to the bottom.

In Fahrenheit, 12°C is 54°F. You do not need one setting for reds and another for whites while they are in storage. The difference between styles only matters on the way to the glass.

The ideal maturing temperature is 12°C.

Long spells above 25°C can affect wine quality

The setting has a partner number: how warm is too warm. The Australian Wine Research Institute (AWRI) says long periods above 25°C (77°F), or short periods above 40°C (104°F), can affect quality. Past 40°C, it adds, a wine's look and taste can change within days.

The same AWRI page cites a recommendation to keep bottles in a cool, dry place at 15 to 20°C (59 to 68°F), with the cork touching the wine. Treat 25°C and 40°C as ceilings to stay under, not as settings to aim for.

In general, any storage place where the temperature exceeds 25°C for long periods and 40°C for short periods can affect wine quality (Ough 1992).

Hold 12°C steady and avoid big swings between day and night

Thermal cycling is the rise and fall of temperature between day and night, and the AWRI advises avoiding it when the swing is large. EuroCave makes the same point about cabinets: it calls a stable temperature essential and warns that sudden changes inside can damage wine.

That makes the cabinet's surroundings part of the setting. A cabinet that has to fight a room heating up every afternoon will not hold its number as well as one in a room that stays even.

Thermal cycling where the temperature varies significantly between day and night should be avoided (Hirlam 2019a,b).

Natural corks can dry out and leak if the air is too dry

Humidity is the second number to watch when bottles stay under natural cork for years. The AWRI warns that bottles sealed with natural cork can dry out and leak in very dry air, and that most storage facilities never control humidity.

EuroCave specifies 70% humidity for its single-temperature cabinets built for long-term cellaring. A cool closet or basement can hold the temperature and still be dry, so a hygrometer is worth adding there. Light, vibration and the rest of the storage conditions are covered in "How to Store Wine at Home, Unopened and Opened."

Humidity is important too, as wines under natural closures can dry out and leakage can occur if the air is too dry; however, in most storage facilities humidity is not adjusted.

Wine serving temperature is a separate number from storage

A common mix-up starts with a serving chart. Someone sees 18°C next to red wine and types it into a cabinet that holds every bottle they own.

Serve full-bodied reds at 18°C and dry whites at 8°C

Liebherr's drinking temperatures put full-bodied reds at 18°C (64°F) and very heavy wines at no more than 19 to 20°C. Light reds come in around 14°C (57°F). Lighter dry whites and champagne go to 8°C (46°F), and white wine overall runs from 6 to 10°C depending on style and sweetness.

Liebherr also calls the old rule of serving red at room temperature outdated, because rooms today are too warm for it. Every one of those figures is for the glass, not the cabinet.

Full-bodied red wines : 18 °C, very heavy wines max. 19–20 °C

Take bottles out hours early; wine gains 2°C in the glass

Getting from 12°C to the glass takes a little planning rather than a second setting. EuroCave suggests taking bottles out a few hours before serving: reds come up toward room temperature, while champagne, whites and rosé get chilled.

Wine warms by around 2°C once it is poured, according to the same page. Pour a red slightly below its target and it reaches the right temperature in the glass. EuroCave describes both ways of getting it wrong: a wine served too cold keeps its flavors shut in, and one served too warm lets the alcohol smother the aromas.

Before serving your wine, you can take your bottles out a few hours beforehand and bring them to an ideal serving temperature, by bringing your reds to room temperature and cooling your champagne, white and rosé wine.

A dual-zone wine fridge makes sense when you serve from it

A dual-zone fridge splits the cabinet into two compartments that each hold their own temperature. It helps if you pour from the cabinet and matters much less if you mostly keep bottles in it.

A 2-temperature cooler has a white section and a red section

EuroCave sorts its serving cabinets into three types. Multi-temperature coolers bring every style to serving temperature, and 2-temperature coolers split into one side for white and one for red. Its 3-temperature coolers add storage and cooling for whites and champagne next to a serving section for reds.

EuroCave presents these as cabinets for people who drink their wine regularly and keep it only for a short time. A second zone saves you from planning ahead, because whites and reds are already near serving temperature.

2-temperature wine coolers have a compartment for white wine and a compartment for red wine.

If the cabinet is for storage, one zone at 12°C is enough

A single zone fits when most bottles in the cabinet are being kept rather than opened this week. Every rack then holds wine at the storage setting, and the bottles you plan to drink come out a few hours ahead.

A second zone earns its space when you open bottles without deciding in advance. Sorting what you keep from what you drink soon is a drinking-window question, covered in "When to Drink Wine: Drinking Window and Aging."

Heat, fill and the door move the wine fridge temperature

Setting 12°C takes a minute; holding it takes more care. Placement, how full the cabinet is and how long the door stays open all move the reading.

Keep the cabinet away from heat sources and direct sunlight

EuroCave's purchase guide tells buyers not to install a wine fridge near a source of heat or where direct sunlight reaches it. Both push the cabinet to work harder against a changing room.

That rules out many obvious spots in a kitchen, such as next to an oven or under a sunny window. An interior wall in a room that stays even through the day gives the cabinet the easiest job.

It is important not to place your wine fridge in an area close to a source of heat or subject to direct sunlight, for optimal performance.

Fill at least 75% of capacity, counted in Bordeaux bottles

EuroCave recommends filling a wine fridge to at least 75% of its capacity for good performance. The same guide says the published capacities are calculated on Bordeaux bottle sizes. Count the real slots once the shelves are loaded, and aim to keep at least three quarters of them filled.

We recommend you fill your fridge to at least 75% of its capacity for optimal performance.

Shelvin shows the row and tier before you open the door

Every search with the door open is a temperature change you cause yourself. Shelvin, a wine cellar inventory app, lets you set up several cellars, wine fridges included, and see the exact shelf and row of every bottle, so you do the searching on your phone instead.

It also tracks each bottle as Stored, Opened or Empty. Version 1.9.0 added Tasting Logs, where you record ratings, tasting notes and food pairings. How to lay out the shelves is covered in "Wine Cellar Organization: Zones and Coordinates," and other apps in the category are compared in "Wine Inventory Apps: 5 Cellar Trackers Compared."

Visual shelf grid: View the exact shelf and row position of every bottle. No more moving bottles around to find what is stored in the back.

Summary: store at a steady 12°C and serve by wine style

Set a wine cellar to 12°C (54°F) for reds, whites and rosés alike, and leave it there. Long spells above 25°C (77°F) or brief ones above 40°C (104°F) can affect quality, so avoid warm rooms and big day-to-night swings, and watch humidity so natural corks do not dry out.

Serving temperatures are a different set of numbers: about 18°C (64°F) for full-bodied reds and 8°C (46°F) for dry whites and champagne. Take bottles out a few hours ahead and allow for the roughly 2°C the wine gains in the glass. A dual-zone fridge suits a household that pours straight from the cabinet, and a single zone suits one that mostly keeps bottles for later.

Once the setting is right, keep the cabinet away from heat and sunlight, fill it to at least 75% and spend less time with the door open. Shelvin (App Store) shows the exact shelf and row of every bottle, so you can find it before opening the door. Label scanning is capped at 2 a week on the free plan and 50 a month on Premium, which costs $6.99 a month.

(Note: Free users can scan up to 2 times/week; Premium users can scan up to 50 times/month).