Even the best breweries know they need to evolve, and that's just what Firestone Walker is doing with the release of Fortem IPA. It's the first release in the Leo v. Ursus Chronology. Until now, the brewery was unable to brew smaller, nimble batches like this, but opened The Propagator, a new miniature brewery that enables their team to explore and experiment before fine tuning and scaling the results at their main brewery in Paso Robles. Fortem is an unfiltered imperial IPA that blends newer hop varieties from the Pacific Northwest and Hallertau, Germany. Available in four-pack 16 oz cans everywhere Firestone Walker beer is sold.