How to Taste Wine: A Sensory Analysis Guide for Beginners

Tasting isn't just "drinking with attention" — it's a method with concrete steps. Here's how winemakers do it, in three stages: sight, smell, and taste.

1. Sight

Before smelling or tasting anything, look at the glass against a white surface, tilted, with good light.

• Color: in reds, it ranges from violet (young) to brick/brown (evolved). In whites, from greenish (young) to deep gold (with more age or barrel time).
• Intensity: how much you can see "through" the wine — a more opaque color usually indicates more concentration.
• Legs: the drops that run down the glass after swirling give a clue about alcohol and residual sugar levels — slower, more defined legs suggest more alcohol or glycerin.

2. Smell

Here you gently swirl the glass (to release volatile aromatic compounds) and smell at two different moments, which tell you different things:

First nose (without swirling)

The subtler, fresher aromas, before oxygen "opens up" the wine.

Second nose (after swirling)

With more oxygen contact, more intense and complex aromas emerge: fruity, floral, spiced, or aged notes (vanilla, toast, leather), depending on the wine.

3. Taste

The final step brings everything together and adds what you can only feel in the mouth:

• Attack: the first impression as the wine enters your mouth — sweet, acidic, dry.
• Acidity: the "mouth-watering" sensation a fresh wine produces; very present in young whites.
• Tannins: the dryness and roughness reds leave on your gums, especially young ones or those with heavy oak aging.
• Body: how "light" or "heavy" the wine feels in the mouth, comparable to the difference between skim milk and cream.
• Finish: how long the flavors linger after swallowing. A long finish is often associated with higher-quality wines.

Why this isn't just personal taste

Professional tasting uses standardized scales and methodologies — like the ISO 4120 standard for sensory difference testing — precisely to separate what's objectively measurable (color intensity, perceived acidity level) from personal preference (whether you like it or not). These are different things: a wine can be technically very well made and still not be the one you like best, and that's fine.