Chestnut kernel refers to the edible part of chestnut fruit, usually refers to shelled chestnut. Freezing is a common food preservation method, which is also suitable for chestnut kernels. After cleaning and removing impurities, chestnut kernels can be placed in sealed bags or containers to ensure that the air is removed as much as possible, and then stored in the freezer. Freezing can effectively prolong the shelf life of chestnut kernels and prevent them from spoilage. In the process of frozen storage, the nutritional components and taste of chestnut kernel can be kept well. When necessary, a proper amount of chestnut kernels can be taken out of the freezer and thawed for cooking or eating.