How long does it take for the insects in the grain to freeze to death?

Bugs in grain can freeze to death in 48 hours. Tie the bag of raw rice tightly and put it in the refrigerator, and after 48 hours, take out the insects and freeze to death, and then pick up the insects. However, the freezing method is only suitable for rice with fewer insects, because there are too many insects, and it is more time-consuming to pick up.

with vinegar. Kill bugs and other methods.

Other methods: Place the raw worm rice in a cool and ventilated place, let the worms crawl out slowly, and then sift again. There are many insects in rice, and phosphorus and zinc plus organic acid can also be used to fumigate

In the veranda or idle room, put the rice bag of the insects together in a well-sealed plastic bag, that is, a fumigation bag, and then put a cup or bowl in the fumigation bag, and put 50 grams of vinegar in it.

If the grain does not exceed 500 kg, wrap one gram of zinc phosphide in paper and put it into a cup or bowl filled with vinegar, without stirring, and immediately seal the mouth of the fumigation bag. Seal for 5-10 days, you can kill all the pests inside. After that, the gas is dispersed for 2-3 days, and the vinegar water and residue are taken out and sorted out.

If you find that the food in your home has worms, you can use the following methods to deal with it:

1. Freezing method. You can put the grain together with the container containing the grain, put it in the refrigerator and freeze it for 24 hours, then take it out, and then freeze the insects to death, and then pick them out directly.

2. Sichuan pepper method. Sichuan pepper is a natural antioxidant with a special smell, rice worms are sensitive to odors, and avoid this smell, prepare a few clean small gauze cloths to wrap Sichuan peppercorns. Place in different positions such as upper, middle, and lower in the rice box.

The National Food Administration has published several secret recipes for insect control, the principle of which can be used in the home:

1. Closed hypoxia insecticide.

Use a 2L capacity of Coke or Sprite plastic bottle, rinse with water, and control drying. Put the food in the bottle and screw the cap tightly tight. Grain respiration will reduce the oxygen consumption in the bottle to a certain extent (about 5% concentration below), if the grain is harmful insects, it will suffocate and die due to long-term lack of oxygen; If there are no pests in the grain, external pests cannot enter the bottle to harm.

2. The physical grinding of food-grade inert powder damages the joints of insects and kills insects.

Using the food-grade inert powder newly developed by the Scientific Research Institute of the State Food Administration, mixed with the aforementioned various grains, put into containers (jars or plastic bags, etc.), when the pests in the grain are active, the inert powder particles will enter the joints of each limb of the pest, wear the internodal membrane, and the pest's body fluids flow out in large quantities, and the pests will die quickly.

You can freeze to death in about three hours.

Rice worms. Refers to the moth in rice, and the scientific name is rice elephant.

It is often found in cereals because of its rapid reproduction rate and is one of the main pests in cereals. Its main host is corn, rice, wheat, sorghum, flour, and other stored grains, and there are many families with wooden floors.

Rice elephant is one of the important storage pests, mainly for the storage of 2 3 years of old grain, strong reproductive ability, large appetite, so it has caused huge losses to grain storage. The main control methods are as follows: improve grain storage conditions, keep warehouses clean, plug gaps to prevent the entry of rice elephants and other storage pests, so as to reduce the harm to food; Improve storage techniques, such as using plant ash.

Plastic film or kraft paper isolates and stores pests. If an insect infestation has occurred, the rice elephant should be driven out of the grain by exposure, so that the pest is separated from the pest-free grain; Kill by spraying chemicals or phosphine.

Fumigation; If the amount of grain preserved is small, it can also be protected from rice elephants by insect-proof packaging or long-lasting odor repellent added to the packaging bag.

Rice insects are generally frozen in the refrigerator for 24 hours to freeze the rice worms, Chahan put the rice together with the bag into the freezer of the Bing Nian Wuchang box, and then take it out after 24 hours of freezing, at this time the insects will be frozen to death and turn red and black.

Rice, also known as chop rice, is a food made from rice after cleaning, hulling, milling, and finishing finished products, and rice is the main food of the people in most parts of China.

Rice contains nearly 64% of the nutrients in rice and more than 90% of the nutrients required by the human body, and is the main food of the people in most parts of China.

Rice contains about 75% carbohydrates, 7%-8% protein, 8% fat, and is rich in B vitamins.