What is NOT a condition that must be met before starting a wine tasting session?

The condition regarding light from a specific angle is not a requirement before starting a wine tasting session. While good lighting can enhance the visibility and appreciation of a wine's color and clarity, it does not have to be from a specific angle. The primary concern is that the light is sufficient to allow the taster to clearly see the wine's characteristics.

In contrast, the other conditions listed are crucial for an effective tasting experience. Having no distracting smells is vital, as external aromas can interfere with the ability to properly assess a wine's bouquet and flavors. A wine glass with a narrower rim than the bowl is preferred because it helps concentrate the aromas, enabling the taster to experience the wine's bouquet more thoroughly. Lastly, starting with a clean neutral palate is essential, as any residual flavors from food or previous tastings can alter the perception of the wine being evaluated. These conditions collectively ensure that the taster can fully experience and evaluate the wine without outside influences.