1, conch brain. Big conch brain is 2 similar small ball ball things, generally have two, located in the head of the big conch parts. When taking conch meat, if you eat too much conch brain will cause nausea and dizziness, the more serious will continue to cause vomiting, this is due to the conch brain metabolism out of the substance is able to cause poisoning, therefore, in the whole process of cooking must be the head of the conch removed.

2, the end of the snail. The head of the snail and the end of the snail should not be eaten.

3. Internal organs and sex hormones of the snail. Flowering snail's internal organs and sex hormones also can not eat, if you eat too much flower snail's internal organs and sex hormones, people have to feel confused not to stay awake. For general seafood, their internal organs do not have a strong ability to dissolve harmful substances, and it is possible that there are toxic substances in the internal organs, which can lead to poisoning if eaten in excess. Although the internal organs of the snail in no strange flavor and taste, but under normal circumstances, taking into account the elements of physical and mental health, it is not recommended to take the internal organs of the snail.