1. Wash the wheat kernels and soak in water for 30 minutes.
2. Soak the black beans and red beans for at least 8 hours.
3. Wash buckwheat and japonica rice and soak for 30 minutes.
4. Put all the ingredients into the pot together.
5. Turn the high heat to a low heat cover and boil it for an hour.
Tips:1. The black beans and red beans must be soaked for more time.
2. If you have other miscellaneous grains at home, you can also boil them together.
