I kegged my first two beers about a month ago and they both have an iron taste to them, with the stout having more than the porter. I cleaned the kegs with c-brite, rinsed well (no Cl smell after 4-5 rinses), then sanitized with star-san. The kits were from Northern Brewer and had bagged dme and liquid in the plastic jugs. I brewed in an aluminum turkey fryer pot as usual and used my copper immersion chiller. The pot was clean, but not shiny, as it has been used numerous times. Could my IC have given the iron taste? How does everyone clean their ic as mine is always tarnished (dull, not green) then comes out of the wort shiny?