Supplement !!! Unfortunately has to take complete my review. Initially very good, later cracks in the plastic casing later a plate fell out of Exchange, six months later, housing cracks (ohhh surprise!) And last but not least SHOCK !!!! little potato water easily boil over during cooking and wandered into one of the cracks. Returned device and demanded money back. Electric shock is life threatening and therefore mentally -5 stars from me because it did not work !!!!!!!!!!