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Old 09-02-2008, 01:14 PM   #1
ol' rummie
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Default Plastic taste with Wyeast!

Does anyone else get a plastic tasting beer when using Wyeast?

I've only brewed about a half dozen batches with Wyeast, and about 5 of them have had a plastic taste (some worse than others), when I switch back to a dry yeast I have no problem. I don't use any plastic components. Just brewed a batch yesterday, and I can already smell it from the air lock. I have other batches that I let sit for 6 monthes after bottling and still can taste it.
Is this just a bad product?? after happening this many times, I ruled out that it was just a bad batch of yeast.

I have used several types of Wyeast, ferment at 66-70F.

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Old 09-02-2008, 02:16 PM   #2
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If you used bleach or idophor and did not rinse well this can happen. High fermentation temps can also play a part. I doubt it is the yeast. Explain what you did about sanitation, process?

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Old 09-02-2008, 04:25 PM   #3
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Quote:
Originally Posted by WBC View Post
If you used bleach or idophor and did not rinse well this can happen. High fermentation temps can also play a part. I doubt it is the yeast. Explain what you did about sanitation, process?
I use bleach, and always rinse, fermentation temps are low (66-70F)
What sanitizer should be used with liquid yeast?
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Old 09-03-2008, 01:10 PM   #4
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Iodophor at 12.5ppm is no-rinse.

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Old 09-03-2008, 01:21 PM   #5
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Never had any problems with Wyeast. One-Step is good stuff, and never causes any unpleasant smells.

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Old 09-03-2008, 01:26 PM   #6
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Since we're talking sanitizers....I am sold on Star-San and will never go back. It's just too friggin good, easy and economical.

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Old 09-03-2008, 01:28 PM   #7
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Quote:
Originally Posted by ol' rummie View Post
I use bleach, and always rinse, fermentation temps are low (66-70F)
What sanitizer should be used with liquid yeast?
It is possible that your tap water has a high concentration of chlorine. Thus, even though you rinse your bleach sanitize you are still having chlorine enough to react with the yeast and create chlorophenols.

It is not a question of which sanitizer to use with liquid yeasts. Any yeast form will react that way with chlorine.

If you want to be sure to remove the possibility of that effect the only way is to switch to a no rinse sanitizer such as starsan or iodopher used in the proper concentration.
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Old 09-03-2008, 02:17 PM   #8
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Quote:
Originally Posted by Zymurgrafi View Post
It is possible that your tap water has a high concentration of chlorine. Thus, even though you rinse your bleach sanitize you are still having chlorine enough to react with the yeast and create chlorophenols.

It is not a question of which sanitizer to use with liquid yeasts. Any yeast form will react that way with chlorine.

If you want to be sure to remove the possibility of that effect the only way is to switch to a no rinse sanitizer such as starsan or iodopher used in the proper concentration.

I use bought water to brew with, I might be getting careless with my rinsing, usually rinse with cold h2o. I will be brewing again on fri. this time with absolutly no bleach or chlorine. I have a product called aseptox, its a no rinse sanitizer, I usually just use it for my kegs, I'll use it for everything from now on in order to rule out the bleach as a culprit.
The reason I suspected Wyeast was because I only started using that product recently ( I have been using bleach for sanitizing for about ten years, but I don't measure how much I use, and might be getting sloppy with it. )
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Old 09-03-2008, 05:52 PM   #9
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Definately not the yeast, but somewhere in the brew process.

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Old 09-03-2008, 06:15 PM   #10
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Quote:
Originally Posted by boodyrischous View Post
Never had any problems with Wyeast. One-Step is good stuff, and never causes any unpleasant smells.
I don't think One-Step is a sanitizer.
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