Pale ale malt, typically American two-row. American hops, often but not always ones with a citrusy character. American ale yeast. Water can vary in sulfate content, but carbonate content should be relatively low. Specialty grains may add character and complexity, but generally make up a relatively small portion of the grist. Grains that add malt flavor and richness, light sweetness, and toasty or bready notes are often used (along with late hops) to differentiate brands.