The shelf life of Celestial Seasonings teas can vary based on the type of tea and its packaging. Generally, most herbal and flavored teas maintain their best quality for about two to three years from the date of production if they are stored properly in a cool, dry place away from direct sunlight and moisture. However, the teas may still be safe to consume beyond this period, although the flavor and aroma may not be as vibrant as when they were fresh. It is advisable to check the packaging for any specific expiration or best-by dates. To ensure an optimal tea experience, storing the teas in airtight containers can also help preserve their freshness. For additional details about specific tea varieties, one might consider visiting the official Celestial Seasonings website.