The sour and spicy taste is rich and appetizing. The cowpea itself has a crisp and chewy texture, and the sour and spicy taste and aroma of the pickled pepper make the dish more flavorful. The sour and spicy taste of the pickled pepper has a slightly fermented aroma that can stimulate appetite, while the crispness of the cowpea alleviates the stimulation of the spiciness, making the overall taste layered but not too spicy.