18 months. The state stipulates that the shelf life of vacuum rice is 18 months, and the storage of rice is related to temperature, climate and light. If stored in a cool, ventilated and dark place, it can be kept for about 2 years. If the time is too long, the quality of rice may be affected, and in the process of long-term storage, rice may be affected by moisture, which may lead to the breeding of insects and affect the taste and health, so it is best not to store it for too long before eating.