Comparative Tasting Method
Why Compare?
Tasting whisky in isolation limits learning. Comparison reveals differences that would otherwise go unnoticed. The human palate excels at detecting differences, less so at absolute judgements.
Horizontal Tasting
**Definition:** Multiple whiskies of the same age from different distilleries or regions.
**Purpose:** Highlights production and regional differences while controlling for maturation time.
**Example flight:** 12-year-old from each Scotch region—Glenfiddich (Speyside), Glenkinchie (Lowland), Oban (Highland), Springbank (Campbeltown), Ardbeg (Islay).
**Key questions:** How does terroir affect flavour? Which production methods create which characteristics?
Vertical Tasting
**Definition:** Multiple ages from the same distillery.
**Purpose:** Reveals how maturation affects a single spirit over time.
**Example flight:** Glenfiddich 12, 15, 18, 21—all same distillery, different ages.
**Key questions:** At what point does oak influence become dominant? When does the spirit reach peak balance?
Cask Comparison
**Definition:** Same distillery with different cask finishes or maturation.
**Purpose:** Isolates cask influence from distillery character.
**Example flight:** Glenmorangie Original (bourbon), Lasanta (sherry), Quinta Ruban (port).
**Key questions:** How does each wood type interact with the base spirit?
Setting Up Effective Comparisons
- **Limit to 4-6 whiskies** to prevent palate fatigue
- **Order light to heavy** (unpeated before peated, lower ABV before cask strength)
- **Use identical glassware** to control variables
- **Pour equal measures** (20ml sufficient for evaluation)
- **Allow rest time** between samples (water and plain crackers help reset)