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