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Old 02-14-2012, 06:43 PM   #21
29thfloor
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I had this happen to a beer after I added strawberries in the secondary. The taste got worse over about 1-2 months and eventually the whole batch were gushers.


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Old 02-15-2012, 12:27 AM   #22
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Wait, are you serving this beer from a bottle or keg?


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Old 02-20-2012, 07:47 PM   #23
BeaverBarber
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Quote:
Originally Posted by Brutus Brewer View Post
I experienced this as well and at first I thought about poor sanitation or chlorine but now I'm not so sure. I had been experiencing this from my most recent brews and the only real change has been using a counter flow chiller and march pump set-up including braided PVC tubing. I recirculate hot wort through the chiller to sanitize it and I'm starting to think that since the max temp on the tubing is less than 212į something from it is leaching out and getting into the beer. Anyone else think that this may be the case?
I too have been recently getting a plastic taste in my beer, and it's only been since I got my counterflow chiller and march pump set up. The taste is so subtle that I'm the only one that seems to be able to detect it. I can only detect it because this flavor is in all of my recent beers. I didn't really notice it at first. One friend said that he could detect an off-flavor, but he couldn't tell what it was. He said it was a new off-flavor to him. Also, I've been brewing very light lagers and kolsches lately because I'm trying to get my brewing process completely correct. I believe it's finally good except for the plastic flavor. I'm going to invest in that same tubing to see if that helps.

 
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Old 02-20-2012, 08:25 PM   #24
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The braided Vinyl tubing I have seen is only rated to about 180 degrees. If you go over that temp you will likely extract flavors that you won't like.

Go with silicone tubing as its rated to 500 degrees.

 
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Old 03-01-2012, 01:45 AM   #25
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Quote:
Originally Posted by Brutus Brewer View Post
What does everyone else think, any chance that at those temps the plastic smell leached into the beer? I read on the web site that the braided PVC tubing is non toxic, so I'm guessing it's still safe to drink. FWIW, the plastic smell I perceived has diminished quite a bit from when I first kegged this batch. In addition, I took a sample to the LHBS and let them try it and they both didn't notice it, only the hops (it's an IPA).
Any thoughts on this? Part of me thinks I should just dump it and start over.

 
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Old 03-01-2012, 03:54 AM   #26
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I say drink it if the taste doesn't bother you ... Why waste beer? That would be alcohol abuse.

 
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Old 03-06-2012, 12:20 AM   #27
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Leave it. It'll probably go away eventually.

I have some pretty bad beers from when I first started - but I could never dump them. They just sit there, and eventually I try one to see if it's any better.

 
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Old 03-06-2012, 01:59 AM   #28
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Be wary of store-bought water. I have had the bottled water taste off; the stuff on the shelf is not refrigerated at can leech the flavor of the plastic.

I never definitely proved my problem, but after I:

Switched to StarSan
Used only distilled water from the store machine (outside)
Changed soft gear

did my plastic flavors go away. They were intermittent. Now I have had around 10 batches and no issues (other than recipe!). It comes back to the issue with beer clean/sanitizing chemistry: with very hard water, they usually do not work. They typically rely on pH. My water is too hard to support StarSan or PBW, so when I want to clean I usually get water from the store.
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Old 10-25-2012, 06:33 PM   #29
Chuckiles
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Oct 2012
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FIRST POST!
Picking up on this thread since I have the same probs.
I've brewed four batches, all had the plastic aftertaste.
Two batches were Mr. Beer (LME), one was Northern Brewer (LME) and the other was hand assembled DME.

I used store bought spring water in gallons, ice bath for wort cooling, plastic fermenting bucket and room temp fermentation (Ale). I also used some off-brand sanitizer from my LHBS. I am switching to Starsan with next batch. House was maybe 72 deg at coolest during fermentation. So my suspicion is high fermentation temps are causing the plastic taste. I did not take temp readings during ferm.

Would anyone agree with this assumption? Would a basic swamp cooler during fermentation maybe solve this problem? So sad to have four batches of beer that have barely been drinkable. In fact, my first two (Mr. Beer) I poured down drain. My last batch was a porter so the malt-heaviness at least covered it up.

 
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Old 10-25-2012, 07:22 PM   #30
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Quote:
Originally Posted by Chuckiles View Post
FIRST POST!
Picking up on this thread since I have the same probs.
I've brewed four batches, all had the plastic aftertaste.
Two batches were Mr. Beer (LME), one was Northern Brewer (LME) and the other was hand assembled DME.

I used store bought spring water in gallons, ice bath for wort cooling, plastic fermenting bucket and room temp fermentation (Ale). I also used some off-brand sanitizer from my LHBS. I am switching to Starsan with next batch. House was maybe 72 deg at coolest during fermentation. So my suspicion is high fermentation temps are causing the plastic taste. I did not take temp readings during ferm.

Would anyone agree with this assumption? Would a basic swamp cooler during fermentation maybe solve this problem? So sad to have four batches of beer that have barely been drinkable. In fact, my first two (Mr. Beer) I poured down drain. My last batch was a porter so the malt-heaviness at least covered it up.
It could very well be the way-too-high fermentation temperature, but often it comes from bleach residue, or chlorine in the brewing water. A new sanitizer should take away any risk of bleach, and using bottled water should eliminate chlorine in the brewing water. I'd use reverse osmosis water, if you can get it, as it's more of a "blank slate" of water. Hopefully that will fix the issue!


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