Back in the day, all my buddies used it. I did not. I used One Step and/or bleach. I swore I could always taste the iodophor in their beers, and for all I know they might have tasted bleach in mine although no one ever said so. Things have come a long way today with PBW/Starsan, and unless you have a compelling reason to go back to the old ways, I'd recommend sticking with them. I think the risk of off-flavors is too great.
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