1. Wash black beans, soybeans, red beans, mung beans and purple rice, put them in a large bowl, add clean water and soak them 1 night.

2. Put the soaked beans into a steamer and steam for 40 minutes on medium heat.

3. After the beans are steamed, take them out while they are hot, add appropriate amount of brown sugar, mix well and let them cool.

4. Then, add it into the mixing cup several times, stir at low speed for 10 second, and repeat it twice until it is made into rice paste.