Fans pour their own beer at Minnesota Twins games

Ann Heisenfelt / AP

Military aircraft fly over Target Field during the national anthem as part of Military Appreciation Day before a baseball game between the New York Yankees and the Minnesota Twins in Minneapolis, Sunday, July 6, 2014.

Associated Press

Monday, July 7, 2014 | 11:48 a.m.

MINNEAPOLIS — The Minnesota Twins say Target Field is the first major league ball park to serve beer from a vending machine.

The self-serve beer station debuted Sunday during the game against the New York Yankees. A second station is expected to be added in time for the All-Star Game next week.

To buy a brew from the vending machine, buyers prove their age at a concession stand and purchase a vending card. That card is used at the vending machine where buyers can tap up to 48 ounces every 15 minutes. The machine offers four beers: Bud, Bud Light, Shock Top Lemon Shandy and Goose Island 312 Urban Pale Ale.

The Star Tribune says that just like the concession stands, the machines stop dispensing beer by the seventh inning.