“What is Tremor California?” Tremor California is as local as it gets when it comes to craft beer. Sourcing 100% organic barley from California farmers, we work with Admiral Maltings located in Alameda, CA to craft the freshest, floor malted barley. Our Light Lager is brewed at our American Owned, Independent Craft brewery located in the heart of Sonoma County. Welcome to Beerfest 2022! Read more about Tremor California.