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Mitoku Traditional Natto Spores
Product Review (submitted on March 17, 2014):
This worked GREAT. I put the beans in 16 oz. jars in a pressure cooker & let the steam provide all the moisture, cooking them for 30 minutes. Salting them with whole seasalt didn't seem to affect the natto cultivation at all & helps the flavor. Placing the beans directly in the pressure cooker means you're going to lose starch in the water that is left over. By placing them in jars there is no water lost & no need to rinse them after cooking, leaving the starch in tact for the natto bacillus to feed on. Thanks for making this available!