This is due to two reasons. First, the nutritional content of most beverages will be higher than that of simple mineral water. The more nutritious something is, the easier it is to go bad and its shelf life will be relatively short. 2. Gimmicks. The packaging of Nongfu Spring is passable and better than that used by ordinary manufacturers. You will know this if you go to the store and pay attention. Mineral water is a major category consumed in summer. Almost no one will keep a bottle of water. You won't drink it until the second year. As long as they can pass the quality inspection, they don't have to worry about whether it will expire.