2. In general, parasites can be killed in a few minutes at about 70℃, while the highest temperature when steaming crabs can exceed 100℃, and the parasites inside can be completely killed in a short time. Take the metacercaria of Clonorchis sinensis as an example, it dies in hot water at 90℃ for one second, at 75℃ for three seconds, at 70℃ and at 60℃ respectively.

3. However, different parasites kill at different temperatures, but there is definitely no parasite when the crab is steamed 15 minutes. If infected with parasites, symptoms such as fever, chills, rash and joint pain will occur; There are also symptoms such as abdominal pain, diarrhea, headache, nausea, vomiting, etc. It is necessary to see a doctor in time, check blood and stool, and give timely treatment after diagnosis.