Why do wine bottles have indentations in the bottom?

Why do wine bottles have a punt at the bottom? We evaluated 10 reasons why wine bottles have indentations in their bottoms to find the true answer. read more

This is deeper in some bottles than in others. —Bob C., Ashland, Ore. Dear Bob, That indentation is called a punt, and it’s a good thing that football season is over, or I would be trying to make a joke about the name. read more

We evaluated 10 reasons why wine bottles have indentations in their bottoms to find the true answer. read more

Wine bottles used for still wine don't have an indent in the base. However, bottles used for champagne and other sparkling wines do - for two reasons. First, the indent is designed to prevent the bottle exploding. The curved wall of the bottle makes for a very strong structure, and the indent makes the base as strong as the wall. read more