Betty Crocker baking mixes generally have a shelf life of about one to two years when stored properly. The specific expiration date can often be found on the packaging, and it is advisable to check for this date to ensure the best quality. If stored in a cool, dry place and kept sealed, these mixes are designed to maintain their flavor and texture. However, it is worth noting that while the mixes may still be safe to use after the expiration date, their quality might begin to degrade. For optimal results, it is recommended to use them before the date on the package. If you have any specific concerns or questions, the website may provide additional information regarding the storage and shelf life of various products.