Guinness revolutionized both draft beer systems and how stouts are canned. The key? Nitrogen, and a modified ping pong ball.

The brewing process mirrors that of regular Guinness, from the malt to the hops, the barley to the yeast. But producing an alcohol-free beer that delivers ... propped up at the bar of creaky ...

The makers of Guinness are working to increase supplies ... particularly at a time when the wider beer market is actually declining. "Late last year, the demand was unprecedented.

While Guinness continues to reign supreme, another Irish beverage is quietly vying for the crown as King of Irish Stout ...