I wanted a tea that keeps the tea hot longer through the double walls,
as a good porcelain or ceramic cup. I had made such an in a restaurant
also ever drunk, but this here is good in this respect nothing!
The hot beverage cools just as fast in this cup, as in a single-walled cup.
Very sad, looked promising. Now we have to look any further!
As optical gimmick but ok for longer keep warm nix!
