Good evening, dear: steam river crabs for 15 to 20 minutes

After the water boils, steam them for fifteen to twenty minutes

After the water boils, steam them for fifteen to two minutes Ten minutes. Because river crabs can easily carry bacteria where they live, they must be heated thoroughly before eating. Bacteria and parasites are not resistant to high temperatures. Usually, steaming the water for fifteen to twenty minutes after boiling will kill the bacteria.