Glossary

Ouillage

/oo-ee-YAHZH/

French term for topping up barrels to prevent oxidation.

Winemaking

Full Definition

Ouillage is the French term for topping up barrels to replace wine lost to evaporation (the 'angel's share'). Keeping barrels full minimizes oxygen exposure and prevents spoilage. Typically performed weekly to monthly. Some styles (Sherry, vin jaune) intentionally skip ouillage for oxidative character.

Related Terms

ullagetopping upevaporation

See Also

barrel agingoxidation
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Reference

More terms starting with O

Oak

Wood used for barrels, adding flavor and texture to wine.

Oaky

Pronounced oak character in wine.

Oenology

The science of winemaking.

Off-Dry

Wine with slight perceptible sweetness.

Old Vines

Mature grapevines, typically 35+ years old.

Old World

Traditional European wine regions.