California Breweries History: Slo Brewing Company Slo Brewing was founded By Michael and Becky Hoffman 1988. The Slo Brewing Company has hand-crafted beer, food and live music. The Slo Brewing Company has begun to focus on making the transition from being a local brewpub to being a nationally respected craft brewing company. Greater attention to detail and their continuing effort to create the best beers on the West Coast and beyond has yielded extensive national and world-wide acclaim.