The top line of code on the bottle neck is the recommended use by date when Gatorade is at its optimal freshness and flavor versus an expiration date. Gatorade is a shelf stable product, not a perishable product like milk or juice. Although not perishable, proper storage is essential to maintaining freshness for the longest period of time since improper storage, such as exposure to high temperatures, direct sunlight, humidity, etc., may reduce the recommended shelf life of any product. Always store Gatorade in a clean, dry and cool location.