I have been brewing for 15+ years and legging for about 8. I have always used Iodophor to sanitize my kegs. Typically I put 1 oz of Iodophor and 5 gallons of water, let it sit for a couple minutes then pour it out and let the keg sit upside down for about 20 minutes before I transfer the beer. I don't recall ever having a problem with this method of cleaning and sanitizing. My last batch I did the same thing. I tried the beer a week later and noticed it had a strange odor/taste. I contributed it to the recipe I used (actually I didn't use a recipe, I winged it). The style is an old ale. I figured I'd let it sit for another week and see if anything changed. This time when I smelled it first thought I smelled Iodophor. When I tasted it I could detect Iodophor. I switched lines to see if it was the beer line. The same thing happened with the second beer line. I connected another beer I made previously to the first line and it tasted and smelled fine. That leads me to believe it must be the keg. The only thing I can think of is somehow enough Iodophor was left over in the keg to affect the beer. Has anyone else had something like this happen? Is my sanitizing method okay? This is the first time this has happened but now I'm worried it might happen again.
Thanks.
Thanks.