"Off Aroma" across multiple beers

[byronyasgur]

Just a shot in the dark, because it is an aroma that some people don't recognize, except in high doses, by chance does the off-aroma smell like bananas?

No I don't think it does - I wondered a bit about that actually because a couple of my beers were wheat beers and a one or 2 of others had a bit of wheat in them ... but no I don't think it's bananna or fruity at all -- I'm tending to think it's the aroma of astringency if there exists such a thing - but the wet cardboard one is also a possibility I suppose - it might be more like wet dog - or so I though last time - gross thought I know but it's an aroma not a flavour ( or I wouldn't be drinking it )

 

[whovous]

Try simplifying your salting. The numbers that really matter are sulfate, chloride and calcium. Make sure these come close to your chosen profile. It is perfectly OK if magnesium, sodium and bicarbonate are all zero. If you go this route you may wind up salting your RO water with only gypsum and calcium chloride.