Why does the flavor of the wine seem to increase when you only partially fill your glass with wine, rather than filling it full?

The flavors of a wine can increase by only filling the glass partially, rather than mostly or completely full. This is due to the aromas building up in the empty spaces of the glass due to the inward curvature of the glass. The increased smell of the wine can heavily influence the drink's flavor.

Asked by Jason Forbes · Last updated 5 years ago · 7.8K views · SOURCE