If you love baking with traditional active dry yeast, Red Star active dry yeast has long been a favorite of American bakers. American-made yeast comes in vacuum-packed 1-pound brick. Many bakers prefer the flavor of active dry yeast, compared to instant. Use in recipes calling for active dry yeast. Kosher. To avoid any confusion, the "BEST IF USED BY" (or "expiration date") is printed in the blue area of the packaging, which is different than the "PRODUCTION DATE" printed in the white area.