That's 24 months. Douchi is the product of fermentation and can be preserved for a long time. Just like douban and soy sauce, Douchi oil can be preserved for a long time. Shelf life refers to the best edible period of the product. The shelf life of the product is provided by the manufacturer, and marked on the product to limit the use. During the warranty period, the product manufacturer shall be responsible for the product quality meeting the relevant standards or the quality conditions explicitly guaranteed. Sellers can sell these products with confidence, and consumers can also use them with confidence.