Not so good. 304 stainless steel is a kind of high-quality stainless steel material, which has the advantages of corrosion resistance, high temperature resistance and rust prevention, and is suitable for making food contact parts. If the inner container of electric kettle is not 304 stainless steel, it may have an impact on health, because low-quality stainless steel may release harmful substances. Therefore, it is recommended to choose an electric kettle with 304 stainless steel liner.