Analysis of the disadvantages of Supor ih9 1 induction cooker: Supor ih9 1 induction cooker has large firepower, fast heating, uneven heating, only a small piece of heat in the middle and small heating area. The middle of the heat-shrinkable pot bulges badly, so the oil can't reach the middle. Because there is no oil in the middle, it is impossible to cook. It would be perfect if the heating area of this Supor induction cooker were larger, but it is a pity that it is too big to boil water.