cinnaluna5 years ago000How easy is it to clean the bottle? And how leak-proof is it?Show in original language (German)georg.rodriguez5 years ago000 Helpful answerIt also works fine with washing-up liquid and warm water. So far, nothing has ever leaked out.Show in original language (German)Commenttiini77865 years ago000I always clean them in the dishwasher. Nothing has ever leaked out ;-)Show in original language (German)Comment