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methanethiol

Mercaptan

CIDER

£69.00£99.00


 

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SKU: CI-74-93-1 Categories: , Tag:

Product Description

Mercaptan, like drains or soft white cheese”

Certified cider flavour standard used to train professional cider tasters to recognize and scale the intensity of mercaptan character.

Methanethiol arises as a result of yeast autolysis at the end of fermentation or during maturation. Formation of high levels can be due to a deficiency of amino acids in the apple juice prior to fermentation. Methanethiol imparts a sulphury character to cider reminiscent of drains or rotting garbage.

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

IMPORTANCE

Methanethiol is a component of the sulphury flavour character of cider. It is found in all ciders to a degree. Methanethiol is an off-flavour when present in cider in excess. Supplementation of juice with ammonium salts prior to fermentation can help control formation of mercaptans in ciders.

ORIGINS

Methanethiol arises in cider production through yeast autolysis at the end of fermentation or during maturation. Formation of high levels of mercaptans by yeast can be indicative of a deficiency of amino acids in the apple juice.

HOW TO TASTE

The best way to detect mercaptan odours in cider is as follows. Without covering the glass, swirl the sample to release the aroma. Take a single short sniff. Repeat as necessary.

CAS NUMBER

The CAS registry number of methanethiol is 74-93-1.

Additional Information

Weight 0.061 kg
Dimensions 0.85 × 0.85 × 0.35 cm
process

fermentation-maturation, ingredients, juice extraction, processing

flavour

microbiological spoilage, off-flavour

chemical

sulphur compounds

capsules per pot

10 capsules, 6 capsules

kit format

full pots of capsules

sector

cider

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