Meanwhile, a barrel is just a barrel. Nowadays, they're mostly made of metal ... and a tube on top that reaches all the way down to its bottom. When you turn the valve, the beer is pressurized ...

Guinness has partnered with Bulleit to release a new beer that's aged inside of Bulleit Bourbon barrels for eight months. Although the beer is new, it's actually a nod to the past—for most of ...