Hab brought us equal to 6, ...

... Because you can take only 600ml, unfortunately, but that's at the
System with the glass bottles that. I am very glad that there is finally glass bottles.
Would be nice if someday a model without the "Wave Design" is offered.
Would not personally like it better.
Some bottles of the lid is not as good. Whether it is on the closure or to the bottle thread
I have not yet figured out.