rCUP Recycled Coffee Cup – Black and Teal 340ml 1 "Practically impossible to clean" Miss Leone 06 June 2019 I loved the idea if this cup as so many spill their contents, however cleaning the lid has proved very difficult and after only a few uses I can no longer use it due to the smell coming from the lid. Very disappointed A note from the team Thank you for your review. We're sorry to hear you're finding the lid difficult to clean and we've emailed to help further. It can be placed on a top shelf of a dishwasher, alternatively apply a mixed teaspoon of baking soda and water, leave for 20 minutes then rinse thoroughly. Our Lakeland narrow neck bottle cleaning brush product number 25874 would be a great brush to use. Thanks again for your feedback.