3 months. According to the inquiring information about Laodingfeng mooncakes, the "Laodingfeng" brand is a famous trademark in Heilongjiang Province. It was founded in Shaoxing, Zhejiang. It has a history of more than 200 years as of December 20, 2023, and has been recognized by the country twice in a row. A time-honored Chinese brand, the shelf life of this brand of mooncakes is 3 months.