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4-ethyl phenol

Phenolic

WINE

£55.00£85.00


 

Quantity
SKU: WI-123-07-9 Categories: , Tag:

Product Description

Band aid, like a Brettanomyces-contaminated wine”

Certified wine flavour standard used to train professional wine tasters to recognize and scale the intensity of band aid character.

4-Ethyl phenol is the characteristic odour of Brettanomyces contamination. It is produced in red wines by Brettanomyces yeasts during barrel ageing, and – occasionally – after bottling. The compound imparts an unpleasant band aid-like character, described as medicinal or horsey. The flavour masks more subtle varietal notes in affected wines.

Food grade | free from sensory impurities | extensively tested | safe to smell and taste.

IMPORTANCE

Ethyl phenol Imparts an unpleasant band aid-like character, described as barnyard, medicinal or horsey. The flavour tends to mask more subtle varietal notes in the wine. Insufficient sulphuring of grapes and poor winery hygiene predispose wines to this problem.

ORIGINS

4-Ethyl phenol is a flavour defect of red wine produced by contaminant Brettanomyces (Dekkera) during barrel ageing, and occasionally after bottling. Wines which are low in sulphur dioxide are particularly sensitive to this problem.

HOW TO TASTE

The best way to detect ethyl phenol and the signs of Brettanomyces activity in wine is as follows. Cover the sample with your hand and swirl the glass to release the aroma. Remove your hand and take a single long sniff. Repeat as necessary.

CAS NUMBER

The CAS registry number of 4-ethyl phenol is 123-07-9.

Additional Information

process

fermentation-maturation, package

flavour

microbiological spoilage, off-flavour

chemical

phenolics

capsules per pot

10 capsules, 6 capsules

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