Well, whilst we're at it, here's one for you:
It seems that many distilleries add colour (caramel) as there is a common perception amongst the public tha twhisky
must have a specific look, or colour. Most people also believe caramel to be sweet, that is not the case, it is really quite bitter, just imagine your Tunnocks wafers without the chocolate, they are not exactly sweet.
Anyway, if we forget caramel and colouring, the cask that is used for maturation is 100% responsible for the resulting colour of the whisky.
Next time you go on a distillery visit look at what goes through that spirit safe, it looks like water!
The colour comes only from the barrel, or more importantly, what was in the barrel previously.
As an example, here are two bottles of Glenglassaugh new spirit, we can't call either whisky as neither are yet 3 years old.
One is directly from the still, the other has been matured for a mere 6 months in a cask:

Sorry, no points this time for guessing which is which
