The key is in the preparation and the proper removal of internal organs containing the tetrodotoxin, which is said to be 500 to 1,000 times stronger than the same amount of potassium cyanide.

• 烹制河豚的关键是要仔细去除含有河豚毒素的内脏，河豚毒素的毒性据说要比等量的氰化钾强500到1000倍。