I clean my lines every Sunday night. I am getting bad tastes on the first pints of the day on my Keg lines that aren’t used as that much. What can cause this?
Maybe the lines need a really thorough clean, yeast in the lines can give off tastes if beer is left standing in the lines for lengthy periods. Perhaps cutting down on some of your taps might be the answer. Or maybe cutting down on slow moving products. Beer always tastes at its best when moving fast.