“Hay, like dried grass or hay”
Certified water flavour standard used to train professional tasters to recognize and scale the intensity of hay character.
Nonanal is formed by bacteria growing in water or contributed, pre-formed, by ground water pollution. This flavour is also occasionally associated with PET packaging of bottled water, being derived from a lubricant used in their production. It imparts a pleasant, but nevertheless atypical, dry grass note to water, reminiscent of cucumber skin at higher concentrations.
Food grade | Free from sensory impurities | Extensively tested | Safe to smell and taste.