The invention and use of stainless steel can be traced back to the first World War. British scientist Henry Breerley was commissioned by the ordnance factory of the British government to study the improvement of weapons. At that time, the rifles used by soldiers were very easy to wear, and Brierley wanted to invent a kind of alloy steel that was not easy to wear. A lot of our life is stainless steel, such as kettle, thermos cup, chopsticks, plates, etc. Because of the improvement of safety awareness, more and more people will pay special attention to whether 304 stainless steel is the most important part of stainless steel when choosing stainless steel tableware. Many businesses will indicate that their products are 304. But really, can 304 stainless steel make dinner plates safely?