Alcohol Fermentation Flashcards
1
Q
What 2 things are required for alcoholic fermentation?
A
Sugar & yeast
2
Q
What 4 things does alcoholic fermentation produce?
A
- Alcohol
- CO2
- Heat
- Flavour
3
Q
What 3 things would cause fermentation to stop naturally?
A
- Sugar is gone
- Yeast has no more nutrients available
- Temperature is above 35c
4
Q
What 3 things can you do to stop fermentation manually?
A
- Chill to <5c
- Remove yeast via filtration
- Kill yeast via SO2 or RCGM
5
Q
Which yeast strain is unreliable yet provides complex flavours?
A
Ambient
6
Q
What does cultured yeast provide with a wine?
A
Consistency
7
Q
What do low temps at fermentation provide?
A
Floral fruity flavours
8
Q
Why are higher temperatures needed to ferm red wine?
A
Extract colours & tannins
