Hi
Just set of a wiessbier extract fermenting, and already there is a distinct plastic aroma from the FV - which also affected my recent brupacks IPA (strangely this seems to have subsided as the beer matures). From what I can read this sounds like phenolics - however I did treat the water with a campden tab first. Any other ideas as to cause or prevention - this flavour doesn not seem present in my one and only AG brew.
ttfn benm
Plasticy flavours
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Russ
was the FV new to you?
I ask as I recently wrecked a brew putting it into a second hand pressure barrel, it tasted great when it went in but developed a horrible chemically taste as it matured
. I threw it down the sink, racked my brains as to what went wrong and sumised it had to be the barrel (I'd never used it before). I washed and sanitised the barrel and filled it with tap water, tasted the water after a week and the same taste was there. God knows what had been in there in the past but it must have tainted the plastc 
It wont cause anymore problems, I sledghammered the thing and put it out for the binmen
I ask as I recently wrecked a brew putting it into a second hand pressure barrel, it tasted great when it went in but developed a horrible chemically taste as it matured
. I threw it down the sink, racked my brains as to what went wrong and sumised it had to be the barrel (I'd never used it before). I washed and sanitised the barrel and filled it with tap water, tasted the water after a week and the same taste was there. God knows what had been in there in the past but it must have tainted the plastc It wont cause anymore problems, I sledghammered the thing and put it out for the binmen
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evilsoc