What are the 4 conditions needed for the vine to produce healthy grape?
- Warmth
- Sunlight
- Nutrients
- Water
What is the temperature range for hot climate?
18.5C - 21C
What is the temperature range for moderate climate?
16.5C - 18.5C
What is the temperature range for cool climate?
Below 16.5*C
How can a hot vintage affect the wine?
The grapes can overripe causing a wine to have lower acidity and higher alcohol (more sugar produced)
How can a cold vintage affect the wine?
The grapes may not ripen enough causing the wine to have too much acidity and lower alcohol (low sugar)
How does hail affect the vintage?
Hail may cause damage to the grapes.
In some cases, hail may damage the entire crops.
How does frost affect a vintage?
A late spring frost may damage buds and reduce yield
How does heavy rainfall affect a vintage?
Heavy rain, especially near harvest may dilute grape flavours
How does excessive sun affect a vintage?
Excessive sun may cause sunburn grapes affecting quality and yield. Causing a lower acidity and higher alcohol (higher sugar)
How does drought affect a vintage?
Insufficient water may cause the vine to shutdown and affect growth
