Why does Murphy Electric's stainless steel electric kettle use 304 food-grade stainless steel liner? Is it healthy?

Strictly speaking, food-grade stainless steel liner is a liner that meets food safety requirements, and grade 304 stainless steel is a stainless steel brand. Its production conforms to American ASTM standards, and the materials produced are harmless to human health. Therefore, the food-grade liner used by Murphy Electric Appliances is still healthy.