1, 316 material cup can be filled with boiling water.
2, 316 stainless steel is made of 304 stainless steel based on the addition of 2% molybdenum (Mo element), which is a food-grade supplies, mainly used for medical equipment, but also can be used in one or two types of tableware, which itself does not contain toxic substances, used in the production of thermal insulation cups are non-toxic, but also has a better resistance to corrosion, the general use of the correct harmless to the human body, but the cost is slightly higher.