Brothers Dave and Erik Peterson love beer. That's why they added a brewery in 1997 to the venerable Glendale watering hole that their dad and uncle started in 1971. This year, the Petersons took that love and hopped it up with a tableside trick — they're calling it Whole Hops Infusions — that allows customers to experiment with the subtleties of beer's fragrant flower. Here's how it works: Order a Bull & Bush beer on tap and then pick one of five hops varietals grown by Jack Rabbit Hill Hops near Hotchkiss. The beer is served in a French press with the crumbled hops cones added. The customer can choose how long to wait before pouring the beer and tasting the effect. A one-minute wait will add a bit of flavor; three minutes will infuse a significant amount; and five minutes will give you an eye-opening hop wallop. It's a heady idea whose time has come.