Why does the airport use cone cups
First of all, the hot water must be carried, it is hot, and it can only be used to drink filtered cold water. Many units do not only drink this kind of water.
Secondly, if you can’t finish the drink and you still have things on hand, you will definitely throw it away, which will not save water but will be wasted instead.
Again, Chinese people have the habit of drinking tea and cannot make tea in cold water.
Finally, it cannot be reused. Ordinary people will not change paper cups if they sit there and drink all the time, and this kind of cone shape cannot be placed, otherwise, it will fall down and spill the remaining water on the table, so it is only suitable for drinking only one cup, not suitable for sitting a long Time repeated use.