Identifying Off Flavor

[Col_klink]

Hi All,
I brewed an Oktoberfest recently and it came out with an off flavor to it. I did a d-rest as recommended. I think it has a vinegary off flavor to it. However, my brother sampled it and he said he thought it had a buttery flavor.

Do you think it is possible that my perception of the buttery diacetyl flavor somehow comes off as vinegary to my palate? I know that sounds strange but i just dont interpret the flavor as buttery. At the same time, my brother doesnt get the taste of vinegar at all. Just curious if anyone has any opinion/comments on the difference in 'flavor perception' my brother and I seem to have with this beer. Thanks for any input.

Cheers,
-Klink

 

[RM-MN]

How about describing the flavor as green apples or freshly cut pumpkin? Possible?

 

[mrgrimm101]

Here are a couple resources that might help.

http://www.howtobrew.com/section4/chapter21-2.html

http://morebeer.com/content/homebrew-off-flavors

 

[Col_klink]

How about describing the flavor as green apples or freshly cut pumpkin? Possible?

Yah pumpkin could be similar

 

[barnaclebob]

vinegar is a very distinct flavor and smell. Did you try some diluted vinegar along side the beer? I thought a cider i made could be vinegary then as soon as I smelled vinegar again I knew it had to be something else.

 

[Col_klink]

Thanks Grimm....very helpful

 

[RM-MN]

If you agree that pumpkin could be the taste or aroma, then it could be acetaldehyde. Here's some more about it. https://www.homebrewtalk.com/wiki/index.php/acetaldehyde