IDK about different settings on the cooker having an effect (mine is super simple and has only two settings: on and off) but if I tried making brown rice with the ssme ratio of water as white, I would end up with uncooked rice.
They turn off when they get above 100C, when all the water is absorbed/evaporated.
Not sure what your point is here, but as per the other replies to this comment that just doesn’t work well for all different kinds of rice. So my completely uninformed thoughts right now are that brown rice needs a longer time with hot water to get to the point we consider cooked. The way a rice cooker works, if they all do like you’ve said, makes the water evaporate too quickly so it it doesn’t get enough time to get into the core of the rice kernels of some kinds. And I’m sure it’s too much for other kinds where you end up with overcooked, too sticky or even like porridge, rice.
Exactly. The brown rice won’t be cooked all the way before the water is evaporated if I use the same ratio as white.