Can cooked squid be eaten the next day?

Generally, cooked squid can be safely consumed the next day if it has been refrigerated promptly and shows no signs of spoilage. However, if left at room temperature or spoiled, it should not be eaten. If in doubt, it is recommended to carefully inspect the squid before cooking. Detailed analysis is as follows:

If cooked squid is stored promptly in a sealed container in the refrigerator for no more than 24 hours, and remains firm in texture, normal in color, and free of unusual odors, slime, or mold, it is safe to eat after being thoroughly reheated, which kills any potential bacteria that may have developed, thus posing no health risk.

If cooked squid is left overnight at room temperature, or if it was improperly stored—such as in an unsealed container or a dirty one—bacteria and microorganisms can multiply rapidly. Spoiled squid typically becomes slimy, turns dull in color, and emits a sour or rotten smell. Consuming such squid may cause gastrointestinal discomfort, including symptoms like abdominal pain, diarrhea, and vomiting. In these cases, it should not be eaten.

It is recommended to consume cooked squid on the same day. Any leftovers should be sealed promptly and refrigerated, and not stored for more than 24 hours. Repeated refrigeration and reheating should be avoided, as this affects both taste and food safety.