esters and phenols, what is the difference? - Home Brew Forums
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Old 10-08-2012, 06:27 AM   #1
kaconga
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Mar 2012
Rathdrum, Idaho
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I was talking with my wife about a hefe we made and she mentions the nice clove smell. She asked if it was an ester and I told her I thought it was a phenol. So what is the difference? Was I correct?

 
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Old 10-08-2012, 06:51 AM   #2
cfonnes
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Jun 2010
Utah
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You are correct in hefes clove is a phenol, banana is an ester.

Here is a great primer on phenols.

http://www.probrewer.com/resources/l...-phenolics.php

 
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Old 10-08-2012, 06:56 PM   #3
Buna_Bere
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Jan 2009
Boston, MA
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Here's a good article on esters in beer
http://beersensoryscience.wordpress..../02/04/esters/

 
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Old 10-08-2012, 07:51 PM   #4
ReverseApacheMaster
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Jul 2009
Keller, Texas
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Phenols are smoky, earthy, clove-nutmeg herbal flavors. Esters are fruity and sometimes can be perceived as sweet.

 
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Old 10-09-2012, 07:18 AM   #5
kaconga
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Mar 2012
Rathdrum, Idaho
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Thanks a ton guys. I haven't finished the study on phenols but it looks really interesting. Especially since chlorophenols have such a low taste threshold. I didn't even have time to glance at the esters link yet.

 
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