It is recommended not to eat unopened rice if it has expired.

Although expired rice may not show anything on the surface, it may actually have deteriorated and produce bacteria such as Aspergillus aflatoxin, which is harmful to human health after consumption. Therefore, if the rice has been stored for too long, it is best not to eat it. Don’t think that the rice is still good when the appearance of the rice has not changed, because some rice that has been slightly spoiled has basically no change in appearance. .

1. How to effectively use unopened rice that has expired?

1. Expired and unopened rice must not be eaten. Even if the surface is not affected by moisture, does not change taste, or changes color, it cannot be eaten. If you raise poultry or livestock at home, you can grind the rice into powder and use it to feed the livestock and poultry. But if the rice is moldy, don’t feed it.

3. It can be used as fertilizer for flowers. You can use the fire method to mix the spoiled rice with firewood, paper and other flammable things and burn it into ash. After the temperature drops, spread it on the ground and it will become a good fertilizer. The effect is similar to that of plant ash. Or bury it in an open space, pour some water, and the fertilizer will be ready in about a week or two.

2. How long is the shelf life of rice?

The shelf life of rice varies depending on its processing method, packaging method, etc. The shelf life of vacuum-packed rice can reach 12-18 months. For ordinary packaging, it may only be 6-12 months. The shelf life of bulk rice is not clearly defined, but it is generally 3 months in summer and 6 months in autumn and winter. After the shelf life has passed, the nutrients in rice will be lost.

3. How to prevent rice from deteriorating

1. Zanthoxylum bungeanum anti-insect method: Zanthoxylum bungeanum is a natural antioxidant and has a special smell. Soak the cloth bag in boiled Zanthoxylum bungeanum water and dry it Put the rice in the air-dried bag, then wrap some new peppercorns in gauze, place them on the top, middle and bottom of the rice, and tie the bag tightly, which can prevent mildew and repel insects.

2. Plant ash moisture absorption method: Sprinkle about an inch of plant ash on the bottom of the rice jar, cover it with white paper or gauze, then pour in dry rice, seal it, and place it in a dry, cool place. The rice can be stored for a long time.