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Alcoholic drinks from worldwide
White wine is made from grape juice pressed off the skins before fermentation, so it takes up little colour or tannin. The juice is settled clear and fermented cool to keep its fruity aromas, and the wine is often bottled young after a rest in tank or on its lees. Made in 6 steps over 12 months – 13 months. The longest step, mature in tank or on fine lees, takes 12 months (Romanet R 2023). Saccharomyces cerevisiae and Non-Saccharomyces yeasts early in fermentation do most of the fermenting.
| Main step | 12 monthsReported[romanet2023][mercanti2026] | Mature in tank or on fine lees |
|---|---|---|
| Temperature | 12 °CReported[vazquez2022] | Settle the juice |
| White grapes (Vitis vinifera) · Pressed whole or after crushing; only the juice is fermented[oiv-coldmac-white][vazquez2022] | |
| 2 g/hL | Pectolytic enzyme · Added to help the juice settle clear in one study's Albariño wineries[vazquez2022] |
| Yeast · Wild yeasts, or a selected Saccharomyces cerevisiae as in the wineries studied[tamang2016][vazquez2022] | |
| Starter | spontaneous (wild yeasts) or a selected Saccharomyces cerevisiae |
Total time across the recorded steps: 12 months – 13 months
What changes: The press squeezes juice from the white grapes; the skins stay out of the ferment
A short cold soak of the crushed grapes before pressing is an admitted option (OIV Code sheet II.1.14). The OIV warns that too much sulphite, heat or time then pulls out phenolic compounds. Output: grape juice; skins and seeds are removed.
Microbes at work in this step
Not documented for this step.
Measured measured in a studySet fixed by a specification or tested recipeReported one source reports itTypical a general value, not sourced for this fermentUnconfirmed not yet checked against a source
Unlike red wine, the skins are pressed off before fermentation, the juice is settled clear, and fermentation runs cooler, about 10–20 °C rather than 20–30 °C. Malolactic fermentation, standard in reds, is done only for some white styles.
The OIV caps total SO₂ at 200 mg/L in dry white wine with no more than 4 g/L reducing sugars, and in the EU any food with more than 10 mg/L must be labelled as containing sulphites. The OIV methanol limit for white wine is 250 mg/L.
Every number is labelled with how it is known. How this atlas is made
