“Phenolic-4VG, spicy, like cloves”
Certified wine flavour standard used to train professional wine tasters to recognize and scale the intensity of phenolic character.
4-Vinyl guaiacol is produced by yeast from grape-derived phenolic precursors in must and wine. Concentrations formed depend on grape variety, the conditions under which the must was prepared, the yeast strain chosen, and the fermentation conditions. This compound imparts a positive note to some white wines, imparting a flavour that resembles carnations. At higher concentrations 4-vinyl guaiacol can be an off-flavour, imparting a clove-like flavour to affected wines.
Food grade | free from sensory impurities | extensively tested | safe to smell and taste.