The texture of carya cathayensis sarg itself is relatively dry, so it is not easy to deteriorate. Therefore, if the indoor temperature is not high, it can be directly sealed and stored in a cool, ventilated and dry place indoors, and attention should be paid to insect-proof and moisture-proof measures. If carya cathayensis sarg has not been opened, it can generally be preserved according to the shelf life printed on its outer packaging, but it needs to be stored indoors in a dark and cool place, which can generally last for about 3 months. If carya cathayensis sarg has been opened, carya cathayensis sarg will absorb the moisture in the air and become moist because it has been exposed to oxygen. Therefore, carya cathayensis sarg, which has been opened, needs to eat it as soon as possible, and can only keep it for about 1 week.