Yes, you really do drink 99.99% pure water.
Of course, we were also fascinated by this idea in the beginning. This is why we started tests at the German Research Institute for Food Chemistry (Leibnitz Institute) and at the Technical University of Munich in 2017. The results showed that the water is 99.99% pure. If you swallow some of the aroma (which can happen during the drinking process), a very small amount of natural aroma ends up in your body. This is comparable to the amount of aroma you inhale in a bakery when you smell fresh bread.