White Kidney Beans Select It is a dry legume of national origin, its cultivation comes from Castilla y León. White beans are among the most valued and exquisite in Spanish gastronomy. Their color is creamy white, with a very smooth skin, oblong and elongated in shape. Once cooked, these White Kidney Beans maintain their shape wonderfully. They stand out for their high content of proteins, carbohydrates, fiber, and iron.