I bought three, one for myself and two for Christmas presents. I was surprised how quickly I found a use for mine. Three weeks ago I started on an experimental non dairy diet. I love coffee and always look forward to buying at least one cup a day when out of the house. I don't like black coffee and quickly tired of fruit teas and black tea and so shopping and train journeys started to lose their pleasure. Then I had the idea of putting milk substitute in my Chilli Bottle and taking it out with me. Problem solved: I order coffee without milk and quietly add my own!