Toward Ecosophy

i've struggled to make natto at home, too. i hadn't realised that soya beans took so long to cook, 5 hours simmering! i've got some on the go at the moment after 2 failed attempts using a thermal cooker (insulated saucepan, like a thermos flask, that retains heat for many hours), plus some natto spores bought from aliexpress (they actually did come on a slow boat from China, delivery was 6 weeks). i'll try the fig leaf idea if that too fails, so definitely curious to hear if anyone has success from will harvested bacillus subtilis.