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Can you still eat a conch if it died while stored in the refrigerator?

Dec 04, 2025 Source: Cainiu Health
Dr. Sun Lianqing
Introduction
In general, conch that has died after being stored in the refrigerator is usually not recommended for consumption. When purchasing conch, choose live and fresh specimens—those whose tentacles retract when touched are fresher. If not using immediately after bringing home, store them in clean water at room temperature rather than refrigerating directly. When preparing fresh conch, make sure to clean it thoroughly.

Generally, it is not recommended to eat conch that has died and been stored in the refrigerator. The detailed explanation is as follows:

After a conch dies, bacteria inside its body multiply rapidly and produce toxins. Even when placed in a refrigerator, this process cannot be completely inhibited. Most of these toxins are heat-resistant and cannot be destroyed by ordinary cooking methods. Consuming such conch may lead to poisoning symptoms such as nausea, vomiting, and abdominal pain. Refrigeration at low temperatures can only slow down bacterial growth but cannot prevent toxin formation. The longer the conch has been dead, the more toxins accumulate, increasing the associated health risks. Therefore, it is not advisable to consume conch that has already died.

When purchasing conch, choose live specimens—those whose tentacles retract when touched are fresher. If not consuming immediately after bringing them home, keep the conch in clean water rather than refrigerating directly. When preparing fresh conch, thoroughly wash it and remove the internal organs and sand. Ensure the conch is fully cooked before eating. When buying seafood regularly, purchase only what is needed to avoid excessive storage. If any discomfort occurs after consumption, seek medical attention promptly.

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