If your beans are still with their skins, soak them in cold water for 12 H or overnight, adding more water if needed throughout the time.

Once your beans are soaked for 12 H, drain and rinse them. Squeeze beans between fingers, the skins would peel easily. Separate skins from beans and rinse again

Drain and rinse and place them into a pot

Fill the pot with enough water and bring to boil

Once boiling, lower heat to medium and let simmer for 30 minutes

Once your beans are boiled, drain and place them on a long sheet and air dry them (I use electric fan btw!)

Then sprinkle the yeast, stir beans so yeast would cover all beans and pack them into ziplock bags

Punch holes all over so yeast can breath

Line your baking pan with clean towel (I use my instructables aprons haha), place packed beans and wrap it with the towel

Once wrapped, place baking pan in oven with light on and ferment beans for at least 22 H

After 22 H, when it's a success, you will have beans cake, firm with white spores all over.