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Home Brew Forums > Home Brewing Beer > Extract Brewing > estery, estery beer
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Old 07-28-2009, 01:50 AM   #1
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Default estery, estery beer

So two of my batches have a definite banana taste. One is a wheat, so I'm cool with it. The other is an IPA...not so cool. Both fermented like a mfer and turned out really cloudy, lots of yeast. The IPA actually sprayed out a bit.

I'm still a noob but the only explanation I could find is that rapidly reproducing yeast can make this taste? Why did this happen?

FYI the other two batches I brewed at the same time turned out great...really clear, super alcoholic, and tasted great.

The wheat has cleared up a bit with time though, and mellowed a bit. I'm sad about the IPA. good thing my imperial brown turned out fantastic.

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Old 07-28-2009, 02:12 AM   #2
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Unwanted esters are most often caused by high fermentation temperatures. This time of year I keep my fermenter in a large tub that's 2/3 full of water, and I add 2-3 frozen ice bottles to the tub to keep the fermenting beer as close to 65 as I can get it. A wet shirt draped over the fermenter and into the water helps as well. It's most important during the first week, after that I still try to keep it under control but I'm not so worried about it.

Did you use the same strain of yeast in all instances? What was your fermentation temperature (the actual beer, not the room)? Some strains are more prone to the banana esters, and some tolerate higher temps a little better than others.

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Old 07-28-2009, 03:43 AM   #3
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Dry hop the IPA using 2 oz of whatever you like for 2 weeks then sample.

If it's not to your liking then let it go a while longer...

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Old 07-29-2009, 04:54 AM   #4
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Originally Posted by homebrewer_99 View Post
Dry hop the IPA using 2 oz of whatever you like for 2 weeks then sample.

If it's not to your liking then let it go a while longer...
would that I could, but its already bottled. I did pitch at like 75-80 cause I don't have a wort-cooler and my dad gets pissed when my friends and I brew all night. I have trouble believing temp was the culprit though, since my setup is in a cool basement of a highly air-conditioned house, but you guys could be right. however, like I said before, the other 2 brews turned out fine and they were the same temp, but God works in mysterious ways.
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Old 07-29-2009, 05:02 AM   #5
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About 99% of those esters happen in a warmer than normal primary fermentation. I didn't realize you had bottled already.

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Old 07-29-2009, 08:48 AM   #6
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... and my dad gets pissed when my friends and I brew all night.
Guess you need to make his favorite beer next time.
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Old 07-29-2009, 09:04 AM   #7
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I once ended up with a "Banana IPA"...though my main problem was using an estery yeast to start wth (Nottingham), having too much sucrose in the wort (1.5 lbs) and waaayyyyyy underpitching.

Beginner's mistakes I learned a lot from.

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Old 07-29-2009, 03:23 PM   #8
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I had a brew where I wound up with a lot of esters, but in my case it was an alcoholic wine-like flavor. I didn't have a chiller at the time and I was in a hurry/lazy and pitched when the wort got just under 80 degrees. (not gonna brew on work nights any more).

I gotta tell you, once you pitch at those temps, and fermentation takes off like gangbusters, getting the temps under control is just about impossible. Soon after pitching I put the fermenter in a fridge and I still couldn't get the temps down to where they should have been. That is, until fermentation subsided, but by then its too late anyway. Despite being a great looking beer, the flavor never did clear up. If you bottled while the beer was still cloudy, you might've bottled too soon. Some extra conditioning time, maybe even a secondary, might've helped. All you can do now is wait and see, and chalk it up for next time.

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Old 07-29-2009, 05:30 PM   #9
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Quote:
Originally Posted by carbon111 View Post
I once ended up with a "Banana IPA"...though my main problem was using an estery yeast to start wth (Nottingham), having too much sucrose in the wort (1.5 lbs) and waaayyyyyy underpitching.

Beginner's mistakes I learned a lot from.

I thought Nottingham was fairly neutral in flavor and tolerated "higher" temps i.e 68degrees or so. Also, how did you under pitch? A standard packet of Notti should be more than enough for a 5 gallon batch. Was your OG too high? I'm simply asking because I have an Impreial Pale (og of 1.070) that used Nottingham and it came out with a strong alcohol taste, but no estery flavors to it. I have three batches (Impreial PA, Oktoberfestale, and Light Ale) either just in bottles or ready to bottle, and all of them used Nottingham.
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Old 07-29-2009, 05:59 PM   #10
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It might be worth your while to post your recipe and procedure for input and save yourself some heartache down the line...

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