Basic faults, features and causes

Question 1

Oxidation
1. Cause
2. Effect & Taste

Answer 1

1. failure of closure / exposed to air
2. browning of wine/ flat taste, sherry characters , apple quince

Question 2

Volatile Acidity (VA)
1. Cause
2. Effect & Taste

Answer 2

1. presence of air and bacteria
2. too acidic / smell taste of nail polish remover

Question 3

Cork Taint (TCA)
1. Cause
2. Effect & Taste

Answer 3

1. mainly faulty or diseased cork
2. loss of fruit / musty, wet cardboard

Question 4

Hydrogen Sulphide (H2S)
1. Cause
2. Effect & Taste

Answer 4

1. produced by yeast under stress
2. discolor the wine / rotten eggs, sewage

Question 5

Brettanomyce
1. Cause
2. Effect & Taste

Answer 5

1.rogue wild yeast found on vineyards
2. tastes medicinal, barnyard, band aid