White kidney beans, also known as Beijing beans, white beans and big white beans, are commonly known as "big mung bean rice". After cooking, the skin opens like white clouds, so it is called "white cloud bean". It is shaped like "chicken kidney", also known as "white kidney bean". According to legend, in ancient times, the Jade Emperor accidentally threw Yu Pei and Ying Luo to the world and turned them into beans of various colors or stripes. Since then, it has multiplied into famous specialty white kidney beans, yellow kidney beans and flower kidney beans. Therefore, it is also called "Xiandou". Baidu "white kidney beans", you can learn about it.