I didn't find it muted the EKG I was using, I'm not sure how it would affect the more fragrant new world hops which I find a bit more sensitive to yeast selection (or is it that I expect more from them so notice the muting more? ). I also find Notty mutes everything with a sort of creamy butteryness.@the_quick @jjsh how did you find it for hop flavour? I normally like notty for summer but it suppresses hop flavour