Which alcoholic drinks are included in the Eat to the Beat dining packages?

[whiteness]

According to Disney's website:

• Other Participating Restaurants: Meal includes an entrée and dessert OR a full buffet (where applicable), as well as one nonalcoholic beverage (or alcoholic beverage for Guests 21 and older)

That could be a pretty good deal, but I cannot find any information about which drinks are included. For example, can we order liter sized beers at Biergarten?