I have some 100 ppm silver and 200 ppm gold with slight taste. It's nothing awful, hard to describe, a bit bitter but not significant but I wouldn't describe them as 100% tasteless. I don't think they're ionic/chlorides though as the gold is a very dark red, almost purple but not and the silver looks like pee basically. Lighter than meso silver looks like, though which is interesting because it's 5x the concentration.