CSP Scotch Whisky Production & Distillation 3

Question 1

What is 'caramel colouring' (E150a) permitted to do in Scotch whisky production?

Accepted Answer

Adjust the colour of the whisky without altering its flavour

Answer

E150a (spirit caramel) is the only permitted additive in Scotch whisky, used solely to standardise colour between batches without affecting flavour.

Question 2

In grain whisky production using a continuous still, what is the name of the column that strips alcohol from the wash?

Accepted Answer

Analyser

Answer

In a Coffey (patent) still, the analyser column strips alcohol and volatiles from the wash before the rectifier refines the spirit to a higher strength.

Question 3

What is the effect of a 'purifier' fitted between the lyne arm and condenser in some Scotch distilleries?

Accepted Answer

It returns heavier congeners to the still for re-distillation, producing lighter spirit

Answer

A purifier causes heavier vapour molecules to condense and fall back into the still for re-distillation, resulting in a cleaner, lighter spirit character.

Question 4

What is the approximate ABV range at which Scotch whisky must be distilled (maximum still output strength)?

Accepted Answer

Must not exceed 94.8% ABV

Answer

The Scotch Whisky Regulations require that the spirit must not be distilled to an alcoholic strength of 94.8% ABV or above, ensuring flavour-contributing congeners are retained.

Question 5

What is the purpose of the 'underback' vessel in a traditional Scotch malt whisky distillery?

Accepted Answer

To collect and hold wort after it drains from the mash tun

Answer

The underback is a holding vessel beneath the mash tun that collects the wort (sugary liquid) drained from the mash before it is transferred to the washbacks for fermentation.

(CSP) Certified Scotch Professional Practice Test

(CSP) Certified Scotch Professional Practice Test

CSP Scotch Whisky Production & Distillation 3