6-chloro-o-cresol

65 µg per capsule

Chlorocresol, like a hospital or antiseptic solution”

Certified wine flavour standard used to train professional tasters to recognize and scale the intensity of chlorocresol character. Chlorocresols contaminate wine through residues of disinfectants on production equipment, packaging materials and - occasionally - processing aids. They are also associated with admixture of phenolic detergents and chlorine-containing materials. 6-Chloro-o-cresol imparts an antiseptic, medicinal, plastic-like taint to wine and is one of the most odour-active chlorophenols known.

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

Flavour cards

Flavour standard information

Technical specification

Assessment
The best way to detect 6-chloro-o-cresol in wine is as follows. Without covering the glass, swirl the sample to release the aroma. Take a single short sniff. Repeat as necessary.
Amount of flavour per capsule
65 µg per capsule
Threshold
The flavour threshold of 6-chloro-o-cresol is 1 - 5 µg / l.
Origins
6-Chloro-o-cresol contaminates wine through residues of disinfectant on production equipment or packaging materials. It can be formed through admixture of phenolic detergents and chlorine cleaning agents.
Importance
6-Chloro-o-cresol imparts an antiseptic, chemical-like, medicinal, disinfectant, plastic-like taint to contaminated wine. It is regarded by consumers as unpleasant and tainted even at low levels. 6-Chloro-o-cresol is one of the most odour-active chlorophenols known.
CAS registry number
The CAS registry number of 6-chloro-o-cresol is 87-64-9.
Other names
  • 6-chloro-ortho-cresol
  • 2-methyl-6-chlorophenol
  • 2-chloro-6-methylphenol
Remarks
Use of drain cleaners containing 6-chloro-o-cresol within the winery environment has been associated with several such taint problems. Problems with this taint have also been traced to use of contaminated yeast hulls added to fermenting wine.
Threshold distribution
Graph
Capsules per pot
10
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