Is it fake that the drinking mouth of the thermos cup bought by the gourmet can't be opened?

It's not fake that the drinking port of the thermos cup bought by the therapist can't be removed. The method of distinguishing true from false is:

1, the appearance of the bottle cap, the outside of the genuine bottle cap is frosted, so don't worry about dropping it on your hand. There are also some fake thermos cups, and there is no matte outside the bottle cap, which feels sticky and soft.

2. In terms of the bottom of the bottle, the authentic THERMOS thermos thermos thermos thermos mug not only has a qualified inspection certificate, but also has an English logo stamped, which looks neat and three-dimensional. And some fakes are easily overlooked at the bottom of the bottle, and the English logo can't be found at all.