The leaves are falling and the air is crisp, it's time enjoy Oktoberfest! What better way to do that than to have a pint of ... water? Yep, water. Water is 90 percent of your favorite beer, and can determine the type of beer brewed. Historically, different types of beer have been brewed in different regions because of the mineral and calcium content of the source water. Now, advances in reverse osmosis technology makes it possible to enjoy your favorite stout, lager or pale ale made from anywhere in the world. Cheers!