A comment on the question about brown rice making a mess in old rice cookers has me wondering:
Is there a proper way to cook brown rice in a mechanical (one button) rice cooker, or do you need a ‘fuzzy logic’ one that can regulate the temperature better?
Currently, I pre-soak the brown rice for about an hour (but don’t rinse again after that soak), and add extra water (well, less rice as I’m using a tiny “3 cup” cooker, which is 1.5 measures on a standard sized rice cooker, so I use about 1/2c brown rice but let it soak, then fill water to line 3)
The water foams up and will come out the vent hole while it’s cooking.