Unfortunately, the cup holds tight until the first drink. Once again it has been drunk, running on the edge of the liquid remains the cup down. The design of the drinking top of the lid is not good. About Schu vinegars liquid is not collected or retained by the cover. The presence grooves for once too small, not connected in the wrong position and with the Trinkoeffnung, so that the liquid also could not run back, if it had been the collected.
Should this be changed and the cover is not bolted outside but inside as well as could be sealed, the 'whole might capabilities are.
The OEffnungsmechanismus is well resolved its approach, even under pressure easily openable as sealing plates and Oeffungsknopf approximately have the same area. Unfortunately, however, the mechanism also seal problems because too many seals were used. An on Oeffnungsmechanismus, a at the outlet for the cover itself. That because something is leaking at the transition to the lid and then another .... no wonder.
Through this mechanism, it can indeed be super Reinungen, so just for coffee with milk drinker good, but what I got from nem clean beaker, for NEN dirty shirt.
Have to compare the Primus stainless steel mug. He has indeed NEN few optical problems and can not be so easy to clean, but is keeping for tight and can be better from drinking. About Schu vinegars liquid flows due to the shape again in the cup ...
So unfortunately, not a recommendation, have given back the cup again and will have to buy another cup Primus.
