guaiacol

225 µg per capsule

Smoky, like smoked fish or cheese”

Certified wine flavour standard used to train professional tasters to recognize and scale the intensity of smoky character. Low levels of guaiacol are derived from ageing of wine in new or intensely-toasted oak barrels. Higher concentrations result from the use of smoke-damaged grapes and cork taint. Low levels of guaiacol contribute to wood-aged complexity of wine. Higher levels impart an undesirable smoky / disinfectant-like note to affected wines.

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 assess guaiacol 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
225 µg per capsule
Threshold
The flavour threshold of guaiacol in wine is 20 - 75 µg / l.
Origins
Low levels of guaiacol are derived from ageing in new or intensely ‘toasted’ barrels. Guaiacol is a key indicator of the use of smoke-damaged grapes as raw material. Guaiacol accumulates in such grapes in a bound form.
Importance
Low levels of guaiacol contribute to wood-aged complexity. Higher levels of guaiacol are associated with use of smoke-damaged grapes as raw material. They impart an undesirable smoky / disinfectant-like note to affected wines. Guaiacol can also be responsible for some types of cork taint.
CAS registry number
The CAS registry number for guaiacol is 90-05-1.
Other names
  • 2-methoxyphenol
  • anastil
  • guajacol
  • guajol
  • guasol
  • 1-hydroxy-2-methoxybenzene
  • 2-hydroxyanisole
  • ortho-hydroxyanisole
  • 1-oxy-2- methoxybenzene
  • ortho- methoxyphenol
  • methyl catechol
  • ortho- methyl catechol
  • pyrocatechol methyl ester
  • pyrocatechol monomethyl ether
Remarks
The flavour of guaiacol tends to polarize consumers with respect to preference – they either love it or hate it.
Threshold distribution
Graph
Capsules per pot
10
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£79.00

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