The Art and Science of Wine Tasting | Qian Janice Wang | TED

Overview

This talk by sensory scientist Qian Janice Wang explores the concept of complexity in wine tasting, examining how chemical and psychological factors shape our perception of wine. Through scientific studies and creative analogies, Wang reveals why experts and novices experience wine differently and challenges conventional ideas about what makes a wine great.

Notable Quotes

- The greatest wines are not so much overpowering as they are seemingly limitless. – Matt Kramer, as quoted by Qian Janice Wang.

- When it comes to complexity, it’s not just what’s in the glass, but also what’s in the mind of the drinker. – Qian Janice Wang.

- If you put your wine in oak, people are going to think it’s more complex, and they might like it more. – Qian Janice Wang.

🍷 What Does Complexity in Wine Mean?

- Complexity in wine is a term often used by critics but lacks a universal definition.

- Wang introduces two types of complexity:

- Chemical Complexity: The molecular makeup of the wine.

- Psychological Complexity: How the drinker perceives and interprets the wine.

- The Berlyne curve from psychology is used to explain how people prefer a sweet spot of complexity—not too simple, not too overwhelming.

🧪 Chemical Complexity: Insights from Blending Studies

- A study at the University of Oxford tested whether blending wines increases chemical complexity.

- Participants, ranging from novices to experts, tasted six wines (three single varieties and three blends) without knowing which was which.

- Surprisingly, beginners were better at identifying blends than experts.

- Blends were not rated as more complex than single varieties.

- Key finding: Perceived complexity was linked to the presence of oak flavors (e.g., vanilla, spice), not the chemical makeup of the wine.

🧠 Psychological Complexity: The Role of Time and Expertise

- Wang distinguishes between:

- Static Complexity: The variety of flavors perceived at a single moment.

- Dynamic Complexity: How flavors evolve over time in the mouth.

- A study using Madeira wines (aged 3, 10, and 20 years) revealed:

- Experts rated older wines as significantly more complex, even in blind tastings.

- Novices showed less differentiation between wines of different ages.

- Flavor evolution over time was more distinct for experts, highlighting how experience shapes perception.

🎵 Music as a Metaphor for Complexity

- Musical examples were used to illustrate static and dynamic complexity, making the abstract concept more relatable.

- A simple chord represents static complexity, while a melody evolving over time mirrors dynamic complexity.

- This analogy underscores how complexity in wine, like music, can be appreciated differently depending on the observer's experience.

🧐 Rethinking Complexity and Preference

- Unlike music, where too much complexity can reduce enjoyment, wine does not show evidence that higher complexity diminishes preference.

- Wang encourages slowing down and savoring the evolving flavors in wine, emphasizing that complexity is as much about the drinker’s mindset as the wine itself.