Cleaning Beer Lines - Star San Leaves a Aftertaste?

[bcmaui]

I just installed two new beer lines and filled them with star san prior to attaching them to the keg. Now both kegs have a faint medicine taste that they did have not before, I'm thinking I am tasting some residual star-san. I've only poured off a pint from each so far. Should I take them off kegs and flush with water? Or will this go away with another pint or two and I should not worry? Is star san maybe not the best for sanitizing the beer lines? I have ordered some BLC, but my understanding is that is for removing beer stone build up, or should I sanitize with that as well?

[Sent From My iPhone]

I flush all my lines with Star San and have never noticed any off flavors. If anything, Star San is sour.

[hotrod38]

I would blame it on the new beer line. Did you clean the new line prior to using Star San? I would hook up an older beer line that you have. If the medicinal taste goes away, you'll know where the problem is. If not, I would look at how you fermented the beer. Was it fermented warmer than it should have? You may even have a wild yeast starting to infect your beer...Let's hope it's the new line.
BLC is not a sanitizer. Stick with the Star San.

[Todd]

I keep a keg of BLC mix by the kegerator, let that sit in the lines for a few hours then flush with a keg of tap water then put the beer back on line. Never had a problem with taste before and the process works well. While BLC is not a sanitizer, it sure does clean up the faucets better than StarSan ever will. It's alkaline enough that I don't think much is going to be able to live in it. If you don't flush the lines with enough water (or beer, but that's a waste) you can get residual taste from just about anything

[bcmaui]

i think it's a fresh plastically taste - is starting to go away. i'm going to flush fresh tubing out next time before hooking up to the kegs

[bcmaui]

yep - fresh hose taste is going away on pint #3 - last night I thought I had two infected beers

[Todd]

Glad to hear that things are improving! Bet you wish you'd flushed 3 pints worth of water through there instead of good beer to wash out that bad 'new car smell' taste.

[bcmaui]

I'll have to remember that next time with new tubing - star-san - water flush - beer

i ran a good deal of star san through each line, so i thought the plastic had been rinsed and was tasting residual cleaner

i've brewed 3 different batches since xmas, so will be hooking up more lines soon