bromophenols

hot plastic, electrical short

chlorophenols

antiseptics, mouthwash

4-ethylguaiacol

smoked meat or clovey, spicy character

4-ethylphenol (4-EP)

farmyard, medicines, and mice aroma.

4-Vinyl guaiacol (4VG)

clove-like, spicy, or herbal – breaks down over time to create vanilla flavor

4-mercapto-4-methyl-pentan-2-one (4MMP)

Black currant, citrusy grapefruit.

3-mercaptohexyl acetate

Muscat, passion fruit aroma.

3-mercaptohexanol

Guava, tropical aroma.

Nerol

Oxygenated hydrocarbon commonly found in hops’ essential oils. Rose, citrusy aroma.

Linalool

Oxygenated hydrocarbon commonly found in hops’ essential oils. Floral and orange aroma.