I have a National ( panasonic ) rice cooker.
10 Asian Cups.
ive had it for a very very long time.
2002.
It was shipped from Chinatown in Toronto
as that was the only place that carried RC's back then
it has a flat bottom
not sure if that has anything to do with it.
but It makes ' persian style rice ' specifically for the crunchy bottom.
and we all know Panasonic is Japanese , and this one was actually made in Japan.
not sure about the Japanese interest in Crunchy Bottoms ...
so yes, rice cookers ( specific ones Id guess w that feature )
can make Crunchy Bottom Rice.