Unit 2

Question 1

Pot still feeds

Answer 1

• Wash charger - singlular, usually 2 x FV volumes
• Series of smaller wash chargers
• Direct from FV

Question 1

Key variables in pot distillation processes

Answer 1

• Capacity
• Materials of construction
• Feed composition
• Method of construction
• How they are operated
• Thermal energy provision
• Vapour condensing
• Collection of products

Question 2

Key design features of wash chargers

Answer 2

• Sized to match the distillation capacity of the wash stills.
• Overfill protection
• System to ensure total feed going to the pot does not exceed the design capacity

Question 3

Capacity ranges of a wash still (whisky production)

Answer 3

1 800 - 30 000L

Question 4

Factors affecting reflux

Answer 4

-Still shape (height, volumes, surface area, lye pipe angle)
- Installation of additional reflux equipment
- Rate of distillation
- Fill level
- Ambient temperature
- Cleanliness of the outside surface of the still