Great optical and thermal effect

If you have a great and not quite cheap coffee, wants you to it flowing out lattes course also enjoy stylish. In addition, these glasses are ideally suited. Without great signs and totally unfussy they are delivered. So they look timelessly elegant and through the double wall burns you no longer fingers. One should his guests but to point out that the coffee it is still hot, even if the glass is cold to the touch from the outside.
Why only 4 stars? Very easily. The glasses have a floor Glasverschweißung seals the double wall. After repeated passage in the dishwasher has, however, a glass of this welding, by whatever adopted. At this point, a hole is now now running through the water in the double wall.
Consequently, one can now wash this glass only by hand as it would fill up the dishwasher.
For the price, I would like to see a slightly better processing.