After much back and forth now I have this cup geholt.Der price is also not without but it was worth it. After boiling the cup with lid immediately used. To turn easily and keeps everything tight. Dishwasher safe on the top shelf, as well as in the microwave to heat up. In the refrigerator keeps everything was, just like in the freezer. There are currently no crack or a cup space. Clear should when freezing a 180 ml beaker not be filled to the brim because the freezing these stretches. Also no discoloration of carrots or other, so short my household tip. First, the cup cold rinse with water and then as usual with warm. With warm first the fat is faster than cold.
