system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: How come water has a taste I can't explain?

There is nothing to compare it to, well, because everything else has a trademark flavor- it's supposed to taste *like* something. 

But water...
gpt
Distilled water doesn't taste like anything, but regular tap or bottled water often contains trace minerals that contribute to taste. You can't really explain that flavor because there's nothing else you consume that has no flavor besides trace minerals.