Yeast Dry Active. 

Bob's Red Mill Premium Active Qualty Dry Yeast equals 1/4 ounce or one standard packet of yeast. Their yeast is the same as that used by professional bakers to obtain superior results. Bob's Red Mill Active Dry Yeast is fresh and reliable. It's perfect for all manner of yeasted breads and baked goods, including sandwich bread, dinner rolls, no-knead artisan bread, pizza crust, whole wheat bread, cinnamon rolls and more.