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acetaldehyde

acetaldehyde

BEER

£99.00


 

Acetaldehyde, like green apple, emulsion paint or white wine”

Capsules per pot: 8 capsules

Quantity

Product Description

Acetaldehyde, like green apple, emulsion paint or white wine”

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

Acetaldehyde is produced by yeast during fermentation. A positive note at low levels but an off-flavour at higher levels. It is indicative of fermentation problems or poor control of dissolved oxygen in packaging.

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

IMPORTANCE

Acetaldehyde is present in all beers. It is a characteristic flavour of some beer styles, eg Bière de Garde. Acetaldehyde is an off-flavour at high concentrations in beer.

ORIGINS

Acetaldehyde is produced by yeast during fermentation as the penultimate step in production of ethanol from wort sugars. Its presence is indicative of fermentation problems and poor control of dissolved oxygen in packaging.

HOW TO TASTE

The best way to detect acetaldehyde flavours notes 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.

CAS NUMBER

The CAS registry number of acetaldehyde is 75-07-0.

Additional Information

Weight 0.06 kg
Dimensions 0.85 × 0.85 × 0.35 cm
chemical

aldehydes, carbonyls

flavour

chemical, off-flavour, oxidation, positive character, yeast-derived

process

fermentation-maturation, package, processing

sector

beer

kit format

full pots of capsules

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