Wine Storage Temperature and Humidity
Wine does not fail because it was stored at 17 °C instead of 13 °C. It fails because the temperature moved 6 °C every afternoon for three years. Stability matters more than the absolute figure.
Storage versus serving — two different numbers
Storage temperature is the temperature at which the bottle sits for months. Serving temperature is what it should be in the glass. A single-zone cabinet at 13 °C stores perfectly and serves nothing perfectly; a dual zone lets you keep long-term bottles at 13 °C and drinking bottles at 8 °C.
| Wine | Storage | Serving |
|---|---|---|
| Red | 13 – 16 °C | 16 – 18 °C |
| White | 10 – 13 °C | 8 – 12 °C |
| Champagne / sparkling | 10 – 13 °C | 6 – 8 °C |
| Dessert / fortified | 10 – 13 °C | 8 – 12 °C |
The swing is what does the damage
A cellar that averages 15 °C but swings between 11 °C and 21 °C is worse than a cellar that sits at a flat 17 °C. Repeated expansion and contraction of the wine pushes against the cork and pulls air back in.
This is the entire argument for a compressor cabinet over a thermoelectric one. A thermoelectric unit cools only a few degrees below ambient, so in a warm room it never reaches 13 °C and it cycles constantly trying to.
- Aim for a day-to-night swing under 1 °C.
- Keep the cabinet out of direct sun and away from ovens and radiators.
- Never put a cooled cabinet against an external wall that gets hot in summer.
- Give the unit 48 hours to stabilise after delivery before you judge it.
Humidity: the half everyone ignores
Cooling removes water from the air as it condenses on the evaporator. A cooled cabinet with no humidity logic will drift down to 40 – 50 % RH, and below about 50 % corks slowly dry and shrink.
The range to hold is 55 – 75 % RH. Above 80 % you get mould on labels and on oak cradles, which is its own problem. Both directions are failures, which is why we control a range rather than add a humidifier and hope.
What we build to
Our cooled cabinets run a 5 – 20 °C range with ±0.5 °C control, single or dual zone, and humidity held at 55 – 75 % as part of the cooling specification.
On a walk-in cellar the unit is sized from room volume, insulation value and glass area — not from bottle count. A glass-walled cellar in a warm room can need double the unit of a solid-walled room the same size.
The detail behind the text
From this page to a delivered cabinet
- Made in
- Shunde, Foshan, China — frame, finish and assembly in one workshop
- Frame
- 18 mm stainless sightline, folded to the measured wall
- Materials
- Stainless steel, tempered or low-E glass, felt-lined bottle cradle
- Cooling
- Embraco compressor, 110 V / 60 Hz for the US, 220–240 V elsewhere
- Production
- 30 to 40 days after the 50% production deposit, quoted per project
- Delivery
- Crated, collected by your forwarder, with a numbered setting-out drawing
- Installation
- By your fitter, to our drawing; we dry-fit and inspect before crating
The questions that come up before an order
What is the ideal wine storage temperature?
13 °C is the classic cellar figure. Anywhere in 12 – 18 °C is fine for long-term storage as long as the temperature is stable.
Can I store wine in a normal fridge?
For a few weeks, yes. A kitchen fridge runs 3 – 5 °C, which is too cold for long-term storage, and it is dry, which pulls moisture out of the cork.
Do I need dual zone?
Only if you want bottles ready to drink at serving temperature. A single zone at 13 °C stores everything correctly; you chill whites before serving.
How fast does a cellar recover after the door is opened?
Two to five minutes for a domestic cabinet, longer for a walk-in with a large door. Recovery time is one reason we prefer a compressor with headroom over one sized exactly.
Send the wall and the bottle count
Three photographs and a tape measure is enough for a scheme, a finish direction and a price. The drawing fee covers the CAD and the visuals.