Wine Fault

Ethyl Acetate

Additional

Ethyl acetate produces solvent-like, nail-polish-remover aromas when ester levels exceed sensory thresholds, often alongside acetic acid elevation. It signals bacterial spoilage or severely stressed fermentation chemistry.

Also known as: Ethyl acetate taint, Nail polish remover, EA fault

Typical severity: High

Cause

Ester formed from ethanol and acetic acid — typically when acetobacter or oxidative spoilage raises acetic acid precursor levels.

How it occurs

Warm oxidative storage, acetic acid bacteria, and stuck ferments drive ethyl acetate formation. It often co-occurs with volatile acidity.

Prevention

Sanitation, oxygen control, cool cellaring, and addressing VA before ethyl acetate accumulates.

Descriptors created

Descriptors reduced

Commonly confused with

Common wine styles

Common grape varieties

Common regions

Related winemaking techniques

Serving implications

Beginner explanation

Nail polish remover on the nose means ethyl acetate — past the point of drinkability for most tasters.

FAQ

Is ethyl acetate the same as volatile acidity?
Related — VA measures acetic acid; ethyl acetate is a distinct ester often elevated alongside acetic spoilage.
Can ethyl acetate be corrected?
No practical correction exists once at fault levels in finished wine.

Related ontology entities

Fault identification guidance reflects common wine education practice and may vary by wine style, age, and context.