Why doesn't cierre chubby King Kong Cup keep warm?

1, cierre chubby king kong cup is not kept warm because of poor sealing. There is a gap in the bottle cap or other places, and there is no sealing ring in the cup cover, which will cause the water in the thermos cup to become tepid quickly.

2.cierre chubby King Kong Cup is not kept warm, or it is caused by air leakage in the cup. In the manufacturing process of the cup, there are uneven welding gaps on the inner container or the welded joints of the inner container are corroded, which accelerates the heat transfer between the two layers of cup walls, so the heat is quickly lost.