This tea gives a chemical taste to the water malgrès several water cleaning and vinegar blanc.Quand I heat water in a kettle "Moulinex" the same water has no taste, plus kettle Koenig and broke down after 8 month.For info I had bought at "Shopzilla" and they do not respond to my emails (total of 3 messages) when I ask them to show me the way to follow warranty service, I highly recommend any purchase on the site Shopzilla for they know that selling but for the rest there are incompetent. I should have made my purchase on AMAZON because it is the only site I've always been satisfied.