Third problem on cheap induction cookers: the power control via +/- keys is too coarse in the low region. E.g. for cooking buckwheat, 600W is too much (the wate

Third problem on cheap induction cookers: the power control via +/- keys is too coarse in the low region. E.g. for cooking buckwheat, 600W is too much (the water boils too intensively, especially near the end), while 400W is not really enough, and there is nothing in between. Fortunately, 12 minutes @ 600W + 8 minutes @ 400W yield an acceptable result.