In a city I consider the Mecca for craft breweries, the Widmer is one of the foundations of that industry. We reserve a tour every time we visit the Rose City and I have the number programmed into my phone. The tour starts with a history of Widmer Brothers and sampling of their excellent beers. The middle consists of walking through their brewing facility, and ends with a gift of a glass and a bottle opener. (those Widmer bottlecaps don't twist off). Then, since you're already there, a meal in the Gashous is a logical grand finale. Their food is excellent, the menu suggests beer pairings (like the brats and the Drop Top Amber) and they will have unique and unavailable elsewhere seasonal and special run brews available on tap. Filll your growler or buy one and have it filled so you can take the experience home.