Some friends prefer to drink black soybean milk. Black beans include small black beans and big black beans. What are the differences between small black beans and big black beans? The difference between small black beans and large black beans mainly includes the following aspects: 1, different shapes and sizes, small black beans are not very round, flat and oval, and the size is similar to that of dried soybeans. Big black beans are about the same size as ordinary soybeans and have a round shape. 2. The difficulty of cooking is different. Small black beans are easy to cook without taking too long, while big black beans take a long time to cook. 3, the color of beans is different, the small black beans are yellow, and the big black beans are yellow and green.