[zakki]

It is true that rice cooker make life easier, no need dedicated time to cook it. And we have always-warm rice.

Recently a family member told me that eating a-room-temperature rice help in reducing the glucose* amount in the rice. So in that case always-warm rice is not a good feature.

*) maybe it is not the correct term

[wk_end]

You should warn your family member that keeping rice at room temperature is a really, really good way to give yourself serious food poisoning - it's an ideal breeding ground for Bacillus cereus. Google "fried rice syndrome".

[implements]

Yes - it’s important rice is either hot or cold, not kept warm for long periods (five or so hours) and then eaten.