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Sparkling vs carbonated wine: what's the difference

Both have bubbles, but the carbon dioxide comes from different places. In sparkling wine it forms during fermentation; in carbonated wine it is added.

🍷 Sparkling wine🍷 Aerated sparkling wine
Source of CO₂Fermentation onlyAdded wholly or partly
Pressure at 20 °C3 bar or more; quality sparkling 3.5 bar or more3 bar or more
BaseFresh grapes, unfermented grape juice or wineOnly wine without a protected name (PDO/PGI)
Label«Traditional method» allowed if the second fermentation took place in the bottle«Obtained by adding carbon dioxide» is compulsory
Lighter versionSemi-sparkling: 1–2.5 barCarbonated semi-sparkling: 1–2.5 bar

Which to choose

It all comes down to where the bubbles come from. Sparkling wine can carry a protected name and the «traditional method» mention, while carbonated wine is a still wine charged with carbon dioxide and cannot have a designation of origin. To know what is in the bottle, look for «obtained by adding carbon dioxide» on the label.

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