Jason Harris brews classic American pale ales right alongside his own patented version of watermelon beer, illustrating his passion for both traditional techniques and forward-thinking beer recipes. The company he started in 1992, Keystone Homebrew Supply, now employs a staff of similarly dedicated crafters who are wise in the ways and means of making your own beer, wine, cheese, mead, honey, and flavored play-doh. In addition to stocking all the required equipment and ingredients, Keystone's 23,000-square-foot location in Montgomeryville also hosts classes that inspire amateurs to cook up their own tipples and cheeses.