Rumford Baking Powder has been a trusted name in baking powder for generations. This quick-acting formula ensures that your baked goods are consistent in quality and uniformity, batch after batch. Use Rumford to achieve a delicate crumb structure that will melt in your mouth and leave your family wanting more. Rumford Baking Powder comes in a resealable, recyclable container and is double acting, Gluten-Free, Kosher: Pareve and has Zero Trans-Fat. Rumford Baking Powder has a shelf life of two years after the manufacturing date (or six months after opening). See the container for the best by date.