I have seen a paper teacup on the Internet, and the tea leaves have been fixed at the bottom of the cup. Who has information about this thing? - Plastic Surgery and Aesthetics Network

I have seen a paper teacup on the Internet, and the tea leaves have been fixed at the bottom of the cup. Who has information about this thing?

This thing has existed for a long time. ...

But I feel that it is used more in office buildings. ...

He added tea leaves when making paper cups, and then poured boiling water to taste tea leaves. ...

The advantage of this kind is that even if the paper cup is knocked over, there will be no tea scattered. ...

The idea came from knocking over the paper cup, and the tea spilled all over the table. ...

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