Today we speak to David Walker of Firestone Walker. The California brewery turns 25 this year, and its own evolution, from a brewery specializing in an English pale ale made on a modified Burton union system, to one purchased by a multinational brewery in the great consolidation phase of the middle-teens now featuring multiple product lines and locations, closely mirrors that of craft brewing itself. In our conversation, we use Firestone Walker’s experience to refract the lessons of the past 25 years of American brewing.