Name: indole
SKU: B-BE-120-72-9
Price: 49.00 GBP
Availability: InStock

Product Description

“Indole, like pig faeces or jasmine”

Beer flavour standard used to train professional beer tasters to recognize and scale the intensity of indole character.

Indole is an off-flavour found in a wide variety of beer styles. It is formed by contaminant bacteria during fermentation.

Food grade | Free from sensory impurities | Extensively tested | Safe to smell and taste.

IMPORTANCE

Indole is an off-flavour in lagers, ales and stouts. It is regarded by some as ‘artisanal’ character (‘jasmine / floral’) and by others as a serious off-note (‘faecal / dirty’).

ORIGINS

Indole is formed by contaminant ‘coliform’ bacteria during fermentation. It is often associated with simultaneous production of dimethyl sulphide.

HOW TO TASTE

The best way to evaluate indole in beer is as follows. Cover the beer with your hand and swirl the glass to release the aroma. Remove your hand and take a single long sniff. Repeat as necessary. Note that half of all tasters are essentially blind to the concentrations of indole found in beer.

CAS NUMBER

The CAS registry number of indole is 120-72-9.

Additional Information

Weight	0.05 kg
Dimensions	.7 × .7 × .3 cm
process	fermentation-maturation
flavour	bacterial, microbiological spoilage, off-flavour
chemical	others
capsules per pot	6 capsules
sector	beer
kit format	full pots of capsules