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It is caused by impermeability. Take it out and let it dry, and let it out. It is best to keep it in the refrigerator.
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Store tightly sealed and keep the flour dry.
Spray insecticidal aerosols. Then put some mothballs.
Abandon all exposed food and food that is not completely sealed, immediately remove the sealed dead food from the packaging, thoroughly clean the cabinet with alcohol (more than 50 degrees), give up all absorbent tableware (such as wooden chopsticks), and wash the non-absorbent tableware (such as iron bowls) thoroughly with clean water.
Your cabinet is mainly unventilated, and the flat cans have organic matter (such as food leftovers), which are prone to mold when the temperature is right and the humidity is high. So: >>>More
Clean and wash all corners of the kitchen every morning and evening, and keep it dry to prevent insects from breeding ground.
Clean up the house, close the door and fight the mouse, take a broom, move the bedside table, wait for the mouse to come out and hold him down, and trample him to death. >>>More