Copper kettle should be used before using white vinegar to open the pot, each time you use the copper kettle must be poured out of the pot of water, and then put the empty household in the electric ceramic stove, disconnecting the power control dry, and to ensure that it is to be completely dry control. Note that the next time you use a copper kettle before, to pour one-third of the water, boil 3-5 minutes after the boiling water is poured out, before you can use the normal boiling water, although a bit of a hassle, but it is worth it than the benefits it brings to us!