Follow these steps to sprout dry beans at home:
Rinse the dry beans and place them in a glass jar.
Fill about 3/4th of the jar with cold water, cover it with a cloth.
Let the beans soak for 8–24 hours.
Drain the water and cover it again with the cloth.
Rinse the beans and drain them again. Repeat this process for 1-4 days.
The longer you keep the sprouts in the jar, the more they’ll grow.