Lesson 4 - Grape Flashcards
1
Q
Describe the veraison phase
A
6 weeks after pollination, the berry tissue softens, skin becomes dark and sugars start to form
2
Q
What type of relationship does acids and sugars have in grape growing
A
Starting - grape has high acids and low sugars. As the sugars grow, acid levels decrease
3
Q
What are the three components of a grape
A
Seed
Skins
Pulp
4
Q
What percentage is grape sugar
A
Approx 20 brix. Water is around 70%
5
Q
What are the sugars found in grapes
A
Fructose and glucose
6
Q
How long do grapes trees take to mature
A
4-5 years
7
Q
Why is sulphur dioxide added to grapes
A
To prevent spoilage organisms this can also cause off flavours in the product
8
Q
What is the ideal grape pH
A
3.4 - 3.7
9
Q
A
10
Q
A
