Why the indent on the bottom of a bottle?

[arcticsid]

Still wondering why some bottles have an indent on the bottom, a punt, I think it is called. I have seen this with champagne bottles, but I have several from wine with the indent. Is there a practical reason?
Still Learning.
Troy

 

[Wade E]

I googled it for you!
Punts

A punt, also known as a kick-up, refers to the dimple at the bottom of a wine bottle. There is no consensus explanation for its purpose. The more commonly cited explanations include:[1]

* it is a symbol -- the larger the punt the better the wine
* it is a historical remnant of old-fashioned glass-blowing techniques; by raising the point where the glass-blowers tube is attached, the small imperfection would not scratch the table
* it had the function of making the bottle less likely to topple over -- a bottle designed with a flat bottom only needs a small imperfection to make it unstable -- the dimple historically allowed for a larger margin of error
* it consolidates sediment deposits in a thick ring at the bottom of the bottle, preventing it from being poured into the glass;[6]
* it allows a bottle of sparkling wine to be turned upside-down and then stacked (depending on its shape)
* it increases the strength of the bottle, allowing it to hold the high pressure of sparkling wine/champagne
* it holds the bottles in place on pegs of a conveyor belt as they go through the filling process in manufacturing plants
* it accommodates the pourer's thumb for stability and ease of pouring
* According to legend the punt was used by servants. They often knew more than their master about what was happening in town, and with a thumb up the punt they could show their master whether a guest was reliable or not. (Vinavisen 19 may 2008 - danish)
* it provides a grip for riddling a bottle of sparkling wine manually in the traditional champagne production process.
* it simply takes up some of the volume of the bottle, giving the impression that you're getting more wine for your money than is actually the case
* Taverns had a steel pin set vertically in the bar. The empty bottle would be thrust bottom-end down onto this pin, puncturing a hole in the top of the punt, guaranteeing the bottle could not be refilled [folklore]

 

[arcticsid]

Nothing like a simple explanation! Good thing I didn't ask something to technical.HaHa. Thanks for looking that up though, I was really hoping for an answer that showed a specific purpose, the only thing I was thinking was for sediment and you mentioned that.
Troy

 

[Vanterax]

The larger the punt, the more pain it is to fill the bottle using a filler. That's what I learned.

 

[Wade E]

I hear ya there when using the spring loaded filler!

 

[Boozehag]

I was told it was to make the bottle stronger for champagne (saw that in one of Wade's answers so that seconds that!)
I was also told that if you hold your thumb in the indent (punt) when opening champayne, it helps to stop it over flowing/ That Im not sure about as I have only small hands and struggle to open a bottle that way.

Isnt it meant to have some significance for pouring as well?


I find them a pain for filling when using a spring loaded filler too!