Punts Make The Bottle More Resistant To High Pressure and when they're more resistant to high pressure, they can better hold sparkling wines like Champagne and Prosecco.
A punt makes it easier to hold a wine bottle – as well as pour from it – with one hand: If you grab your wine bottle from the bottom, it's no surprise that the punt is present, acting as a spot to place your thumb while the rest of your fingers grab the base of the bottle.
With a flat- bottomed bottle, when the wine is poured, this layer is easily disturbed and the poured wine ends up cloudy, spoiling its appearance and sometimes its taste. Having an indent in the bottom means that the sediment is deeper, with a smaller surface area, thus easier to avoid disturbing.
Bottle Specs: