The shelf life of King Arthur Flour products can vary based on the specific item and storage conditions. Generally, all-purpose flour, bread flour, and whole wheat flour have a shelf life of about one year when stored properly in a cool, dry place. For optimal freshness, it is advised to keep these flours in an airtight container. Specialty flours, such as cake flour or high-gluten flour, may have similar shelf lives. Baking mixes, like pancake or brownie mixes, often remain good for about six to twelve months, depending on the ingredients. Additionally, products that contain fats or leavening agents might have shorter shelf lives due to their ingredient composition. For the most accurate information regarding specific products, one can refer to the expiration date printed on the packaging. It is always good practice to check for any signs of spoilage before use, regardless of the date. For more detailed product information, visiting kingarthurbaking.com may be helpful.