UNDERGROUND COOL: Weinhaus owner Hunt Mallett keeps a stock of 20-30 kegs of beer in the store's basement refrigerator. He sells a keg roughly every other day. Photo by Edwin Arnaudin What beer ...

The most common sizes for craft beer kegs are half-barrel kegs (which hold about 15 gallons of beer) and sixth-barrel kegs (also called “sixtels,” they hold about 5 gallons of beer).

Millions of gallons of beer stuck in stadiums, concert halls, restaurants and bars are fast going stale, leaving the beer industry with a tricky problem: What to do with all that booze nobody will ...

As bars and taprooms close, many craft brewers have too much aging beer on their hands. But others are finding new ways to package and sell it.