Can clearly tell you that this is very unhealthy! Although "seven on eight" after the tripe taste better, the meat is more tender, but from the point of view of dietary health, such tripe may in fact are not cooked through, there will be parasites or bacteria hidden trouble.

Frequent consumption of undercooked tripe is likely to cause diarrhea, parasitic infections and even some other gastrointestinal diseases.

So the most scientific position for shabu-shabu should be - just 3~5 minutes, and the same goes for other meats.