The short answer

Wine needs stable temperature around 12–14 °C, darkness, humidity between 60 and 75 %, and — for bottles closed with cork — horizontal storage. You do not need a custom cellar to start. A dark, temperature-stable interior cupboard handles most bottles intended for medium-term drinking; a small wine fridge solves the rest.

The five rules of wine storage

1. Temperature: 12–14 °C is ideal. The closer to a constant 12–14 °C you can keep your bottles, the longer they will live well. Wine begins to suffer above 21 °C and is at serious risk above 24 °C — the chemistry of ageing accelerates, and not in the right direction. Cool is always safer than warm.

2. Stability matters more than the exact number. A cupboard at a steady 16 °C is better than a “cellar” that swings between 10 °C in winter and 22 °C in summer. The expansion and contraction of repeated temperature change forces air past the cork, oxidising the wine. Aim for steady before you aim for cold.

3. Darkness. UV light degrades aromatic compounds. This is why fine wine bottles are made of dark glass; it is also why a wine displayed under bright kitchen light for months can taste tired before its time. Keep bottles in the dark whenever possible.

4. Humidity: 60–75 %. Humidity matters for cork-sealed bottles. If the air is too dry (below ~50 %), corks shrink and oxidation accelerates; if too humid (above ~80 %), labels suffer and mould can form. A small hygrometer makes this trivial to monitor.

5. Bottle position: horizontal for cork, vertical for screwcap. Cork-sealed bottles should rest on their side so the wine stays in contact with the cork. Screwcap and crown-cap bottles can stand vertically without consequence.

Solutions by budget

You do not need to invest in a cellar to drink well. Choose the level that matches your collection:

  • €0 — Use what you have. A dark interior cupboard, away from kitchen heat sources and exterior walls; a basement or storage room with stable temperature; the back of a wardrobe. Avoid: above or near the fridge, the freezer, the oven, or kitchen cupboards exposed to heat fluctuations.
  • €200–€500 — Small thermoelectric or compressor wine fridge (18–24 bottle capacity). Quiet, energy-efficient, perfect for an everyday cellar in an apartment.
  • €500–€1,500 — Dual-zone wine fridge (30–50 bottles), with separate temperature zones for whites and reds. The point at which serious collectors start to feel comfortable.
  • €2,000+ — Custom-built cellar or large multi-zone cabinet. For collections that include a meaningful number of cellaring-quality bottles (premium Santorini Assyrtiko, mature Naoussa Xinomavro, fine Bordeaux, Vinsanto).

Practical tips

  • Never store wine above the fridge. The compressor radiates heat and vibration, both wine-unfriendly.
  • Avoid kitchen cupboards — they cycle in temperature every time you cook.
  • Tag bottles with the purchase or vintage date if you keep a mixed cellar; it saves rooting around.
  • Don’t move bottles often. Vibration disturbs sediment in older wines.
  • Keep an inventory. Even a simple list helps you drink wines while they are at their best, rather than discovering a forgotten case past its peak.

How long does an open bottle last?

Once a bottle is open, oxygen begins its work. Rough guidelines, kept in the fridge with a tight stopper:

  • Sparkling: 1–3 days (use a sparkling-wine stopper).
  • Light, crisp whites and rosés: 3–5 days.
  • Full-bodied or oak-aged whites: 3–5 days.
  • Light reds: 3–5 days.
  • Full-bodied reds: 3–6 days.
  • Fortified wines (Vinsanto, sherry-style, port-style): 2–4 weeks.

A simple vacuum pump stopper extends the life of most still wines by a day or two. An inert-gas spray (argon) is the gold standard for serious collectors.

Drink Greek, store Greek

Some Greek wines reward serious cellaring — premium Santorini Assyrtiko, Naoussa Xinomavro, single-vineyard Nemea Agiorgitiko, and above all Vinsanto. Read more in our guide to Assyrtiko’s ageing potential.