Aromaer

Aroma in whisky constitutes the overall scent impression, detected by the nose and often forming the basis for the first assessment of a whisky. The aroma experience reflects a complex blend of volatile compounds that originate from the raw material, fermentation, distillation, and aging in wood. Because alcohol can mask fine notes, temperature, the glass, and the time in the glass play an important role in how the aromas develop when sniffing.

Some notes on the structure

For most whiskies, aromas appear at three levels, called top notes, middle notes and base notes: - Top notes: the most volatile compounds that are smelled immediately on the first sniff and often dissipate quickly. - Middle notes: the characteristic notes that come forward when the alcohol's intensity decreases and the glass is aerated. - Base notes: longer-lasting aroma compounds that give depth and a long-lasting aftertaste through wood aromas and rich sweetness- or smoke-notes.

Common aroma categories

• Fruit aromas: apple, pear, peach, raisins or dried fruits; often more evident in fruity and lightly sweet whiskies.
• Spices and sweetness: cinnamon, cloves, vanilla, caramel and honey, as well as burnt sugar notes seen in western-styled or sherry-aged variants.
• Wood and smoke: tannins from the oak, vanilla from the wood, lacquer notes, as well as smoke- and peat-notes in peated whiskies.
• Flowers and plant blends: lavender, jasmine, grass blades or herbs, which often give a fresh note in younger or lighter whiskies.
• Earth and minerality: dry earth, leather or leather-like notes, as well as minerality in certain single malts.

Notes and descriptions

Aroma descriptions are often used as notes within a structure that helps record and communicate the aroma experience: - Fruity notes: fresh, dry, sweet, dusty or roasted. - Tropical or exotic notes: pineapple, mango or coconut for a particularly tropical touch. - Wood and aging: oak-derived tones, toffee-like or dried wood. - Smoke and peat: warm campfire peat, ash or marine notes in certain types. - Sweet and spicy notes: caramelized sugar, honey, vanilla, dark chocolate or dried spice.

Nosing techniques and practice

• Glass and temperature: use a tulip-shaped glass or a glass with an opening at the mouth, and let the whisky cool to about 12–18 °C to promote the aroma without the alcohol’s intensity dominating.
• Nosing technique: hold the glass lightly in the hand to warm the liquid a little, roll the glass gently to release the scent molecules, and bring the nose close to the opening without sticking the nose fully into the glass.
• Selecting aromas: skim through the different notes by repeating nosing with short breaks and focusing on the difference between top notes and base notes after the alcohol has become less dominant.

Factors affecting the aroma

• Alcohol strength and water: high alcohol can mask subtle notes; adding a few drops of water can open up more scents.
• Aging environment: the type and volume of casks, the seasoned materials, and the history of aging influence the aromas that develop.
• Age and style: younger whiskies tend to have fresher notes, while older whiskies often offer more complex and deeper notes from wood and aging.
• Glass design and temperature: appropriate glass design and correct temperature improve or limit the accessibility of certain scent notes.

Note examples and description techniques

• Describe a fresh fruity whisky: fruit depth with apple and pear, accompanied by a light floral note and a hint of vanilla.
• Describe a peaty whisky: smoky, peat-forward base with licorice and dried wood, followed by spicy and sweet undertones.
• Describe a sherry-aged whisky: exhibiting red-wine aging characteristics, with dried fruit, toasted oak and caramel.