Cover is too complicated constructed difficult to clean and prone to mechanical influences

The metal ring on the closure is just too easy when the bottle is placed in a bag with other items and there is subject to mechanical influences. If the ring is pointing to, just a little pressure on the plastic knob has to be and already the part is open.

Even the lid in the dishwasher is not really easy to clean, because no matter how you position it, it always accumulates on either side rinse water in the lid.

IMHO the lid is therefore a bad design.