Boiled tofu can generally be consumed if stored properly overnight, but it needs to be refrigerated and not exceed 24 hours. Tofu is rich in protein and is prone to bacterial growth. Improper storage during summer may cause spoilage. Tofu, as a high protein food, has a high moisture content and is prone to the growth of microorganisms. The growth rate of bacteria slows down in a refrigerated environment, and overnight tofu that is sealed and stored can be safely consumed when heated to a center temperature exceeding 70 degrees Celsius. The refrigeration temperature should be controlled below 4 degrees Celsius to avoid contact with other raw foods. Sticky texture and sour odor are signs of deterioration, and should be discarded in such cases. Wrapping or sealing with plastic wrap can reduce water loss and cross contamination. Tofu stored at room temperature for more than 2 hours is not recommended for consumption, especially in high temperature environments during summer where microbial growth is rapid. Overnight tofu that has not been thoroughly heated may contain pathogenic bacteria, and those with weak gastrointestinal function are prone to diarrhea after consuming it. Traditional brine tofu is more suitable for short-term storage than tender tofu due to its lower water content. Repeated heating can cause the texture of tofu to harden and the loss of nutrients to intensify. It is recommended to heat it up once after packaging.

Before consumption, it is necessary to observe whether the tofu has any odor or mucus. Adequate heating can kill most bacteria. Suggest dividing tofu into small portions and refrigerating them to avoid repeated use. Cooking with fresh vegetables can enhance nutritional value, and people with gastrointestinal sensitivity should control their intake. If stored for more than 48 hours or with uncertain safety, it is recommended not to consume again to ensure health.


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