Cast-Iron KettleThis is a combination of a cast iron kettle with a plywood handle. To use in daily life I changed the hard image of iron to be softer with a wooden handle and a knob. Also I designed a modern shape of the iron kettle so it can be used easily in daily life. The flat shape at the bottom is the best shape for an electromagnetic cooker, because it makes thermal conductivity higher. The kettles finishing way is unglazed and it is heated to 800c. Firstly