Is it safe if there is no 304 mark on the thermos cup?

Usually when we buy a thermos cup, facing the dazzling array of water cups in the mall, it is difficult for us to judge which quality is good. At this time, many people will judge the quality of the water cup by looking at the stamped mark on the liner of the thermos cup. So is the thermos cup with the 304 logo on the inner tank really made of 304 stainless steel? Are water bottles without steel stamps unsafe?

Let’s start with the production process of the thermos cup. The 304 or 316 logo we see is usually printed on the bottom of the inner pot. This is pressed by a machine in the factory. This is just a simple process. The testing department does not mandate that water cups must be printed with a label indicating the material of the water cup. This has led to many manufacturers trying to sell their products. Therefore, even if the thermos cup is printed with 304 stainless steel, it is not necessarily made of 304 material.

So why don’t some factories do this process? One reason is that the material they use is really not 304 or 316 stainless steel, but inferior stainless steel. Another reason is that some big brands do not need to use logos to highlight the materials they use. For example, big brands such as Zojirushi, Tiger, and Thermos do not have logos engraved on the water cup materials. Therefore, when we buy a water cup, we must first pay attention to whether there are clear food-grade materials on the manufacturer and packaging box. In addition, it is best to choose water cups from big brand manufacturers, which have mature and advanced technology and do not cut corners.

The thermos cups produced by Yongkang Minjue Commodity Co., Ltd. are made of solid materials and exquisite workmanship. The materials insist on using food-grade 304 stainless steel inside and outside, or a combination of 304 stainless steel outside and 316 stainless steel inside. The entire production process adopts AQL2.0 inspection standards, which are much higher than peer standards. All links adopt a full inspection system to ensure that each product is a high-quality product.