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3 Cups
Easy
By Naomi Duguid
Published 2012
The tua nao makers I know all let their cooked beans ferment in a rice sack, woven bamboo, or straw basket, so I use a basket. I assume it helps with fermentation. I have also left them in a little of their cooking water in a pot, and they fermented just fine.
Place the beans in a large pot, add water to cover by about