Menu

You must be 18 or Over to access this website. Please enter the Year of your Birth

Enter Site

By entering our site you agree to our Privacy and Cookie Policy

18th October 2022

What Gives Whisky its Flavour?

Whisky is popular for its wide range of flavour profiles. While maturation in the casks* accounts for the majority (60 – 80%) of the flavours and aromas, there are several factors that develop flavour in whisky prior to maturation.

DISTILLERY

Each distillery produces a unique style of whisky influenced by several environmental factors. Alongside the geographic location of a distillery, the weather, water source quality, and equipment used all impact the flavour of whisky.

GRAIN RECIPE

Whisky is made from a variety of cereal grains such as malted barley, rye, wheat, and corn. The grain recipe determines the flavour of whisky, as the malting process produces phenolic compounds that contribute to its unique taste.

YEAST TYPES

Yeast is used during the fermentation process, which contributes to the development of spirit flavour and aroma. Distilleries use different yeast strains to improve production and flavour quality.

USE OF PEAT

The use of peat (a type of fossil fuel) to dry malted barley during the malting process imparts a smoky and peaty flavour in whisky.

DISTILLATION

Distillation process helps to purify the spirit by removing congeners. The number of times the spirit is distilled affects copper solubility and hence adds character to whisky.

SIZE OF COPPER STILLS

Copper** extracts unpalatable sulphuric compounds during the distilling process. Thus, whisky distilled in a taller nd narrower copper still will produce lighter and fruitier notes than a whisky distilled in wider and shorter copper stills, as the metal gets more contact with the distillate.

MATURATION IN OAK CASKS

Oak casks play a crucial role in the maturation of whisky, giving it those distinct flavours and aromas. American oak cask contains vanillin, which adds creamy, coconut notes to whisky, while European oak cask imparts woody, spicy notes. Scotch distilleries mainly use oak casks that have already aged other spirits, such as bourbon or sherry, which creates new flavour and complexity in whisky.