It surely has. One could probably argue whether it is smell or taste, or whether it is due to the water itself or the [lack of] minerals and gases dissolved in

It surely has. One could probably argue whether it is smell or taste, or whether it is due to the water itself or the [lack of] minerals and gases dissolved in it, but there is definitely a noticeable variation between different things commonly called water. Even more, there is at least some evidence [1] that there is a noticeable difference between normal and heavy water where heavy water is described as slightly sweet, see for example this, admittedly not very scientific, self-experiment [1] on YouTube, drinking at 4:30 and 7:50. [1] https://en.wikipedia.org/wiki/Heavy_water#Physical_properties https://en.wikipedia.org/wiki/Heavy_water#Physical_propertie... [2] https://www.youtube.com/watch?v=MXHVqId0MQc https://www.youtube.com/watch?v=MXHVqId0MQc