The depth of a bottle’s punt also used to be a marker of value, and some wine manufacturers continue to exaggerate the indents at the bottom of the glass to pass it off as high-quality.

A standard bottle of wine is 750 milliliters. If two standard bottles of wine are placed next to each other, one may appear larger because of a more prominent punt. The size discrepancy could play a ...

Why do wine bottles have those indentations in the bottom? This dimple is called a punt and the website Wine Spectator tells us it served a real function. Before the Industrial Revolution ...

Add to that, the punt helps in cooling. When a bottle is placed in ice, the concave bottom increases the surface area that touches the ice, so the wine cools faster.

Learn about the different shapes of wine bottles, from Bordeaux to Burgundy to Alsace to Champagne. Learn what bottle shape says about the wine inside, and how the glass impacts the wine.

The aluminum bottles are also slightly smaller than traditional glass bottles because they have thinner walls and no “punt,” or indent, on the bottom while still holding the standard 750 ...