Acetaldehyde
Term from the Brauwerkstatt brewing glossary, category “Faults and hygiene”.
Explanation
Off-flavour of green apple. Typical of beer that is too young and was bottled too early, or of stressed yeast. With a little more time on the yeast it usually disappears by itself.
Test your knowledge
What does the fault acetaldehyde taste like?
- Butter
- Cardboard
- Green apple
Show answer
Correct: Green apple. Acetaldehyde is typical of beer that is too young. With a little more time on the yeast it usually disappears.