Can blackened potatoes that have been left overnight still be eaten?

Blackened potatoes overnight can generally still be eaten if they are not rotten or spoiled. However, if there is an off odor, mold, or rotting, they usually shouldn't be consumed.

When potatoes are cut open, their internal tissues come into contact with air, causing an oxidation reaction that turns the surface black. This is a normal chemical change. If the potato is only slightly blackened on the surface and shows no signs of rotting, off odors, or mold, it is generally safe to eat. However, it is recommended to consume it promptly to ensure freshness and taste.

If the blackened potato is accompanied by an off odor, soft rot, or mold, it indicates spoilage. Spoiled potatoes may contain harmful toxins that could cause gastrointestinal discomfort or even poisoning if consumed. In such cases, they shouldn't be eaten and should be discarded immediately to ensure food safety. It is advisable to store potatoes in a dry, cool place, avoiding direct sunlight and humid environments.

When storing food in daily life, it is important to maintain a suitable environment and minimize storage duration. If clear signs of spoilage are observed, the food should be discarded immediately to prevent health risks.