Swirling

[yclim]

Aroma is part of wine enjoyment, as IK has mentioned. Swirling of the wine encourages the evaporation of the alcohol in the wine. When the alcohol evaporates, the aroma of the wine comes out along with the alcohol. Thus, swirling of the wine brings out the aroma of the wine better.
That's why people swirl their wines, followed by sticking their nose into the glass. (Well, some people do swirl their wine coz they think it looks cool....)
This is my understanding of wine swirling, please correct me if I am wrong [img]http://www.wines.com/ubb2/smile.gif[/img]