Figured I would bump this to the top. Still having the same issues. All my beers seem to have the same after taste. Kind of dry or flat. First all grain was BIAB, have since gone to a cooler mash tun, still have the same taste. I have never tested the PH of the mash, but the only thing in common with all of the beers is the water used, and Im carbing with CO2 from my local sports store, paintball. I did check ph of water out of the tap and if I remeber it was 6.9 Im getting close to going back to extract, or just dumping this whole home brew deal.