Because the saponin contained in the beans is detrimental to the human body, it is important to eat fully cooked beans when consuming them.

Generally used directly to stir-fry the four seasonal beans will appear half-cooked situation, this four seasonal beans is very easy to trigger a "stomach ache", so in the stir-fry four seasonal beans before, it is possible to blanch the four seasonal beans once, and then stir-fry, or used to pickle into the pickled bean curd to eat.