Grassy aroma

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Onthebrew

Grassy aroma

Post by Onthebrew » Mon Nov 27, 2017 2:24 pm

i am a bit confused about Grassy aroma. i have had it before but associated it with green beer and it tended to clear up with time.

However my last brew i split between bottles and 9 litres keg ( first time) after 3 weeks in FV.

The kegged beer carbed well after 3 or 4 days, tasted great, nice aroma and was all drunk within a week ( i am 100% sold on kegging now!). However the bottles have been bottle conditioning for three weeks now and when i opened one last night I got a strong grassy aroma that was not at all present with the fresh kegged beer - confused how this developed? i thought it disappears with time not increase. The beer itself isn't bad according to the mrs but i couldn't get past the grassy smell and didn't enjoy it.

It was a american IPA, no dry hops but a 30 minute hop stand at 80C.

can anyone throw any light on this?

Onthebrew

Re: Grassy aroma

Post by Onthebrew » Wed Nov 29, 2017 1:18 pm

.......Anyone?

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Sadfield
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Re: Grassy aroma

Post by Sadfield » Wed Nov 29, 2017 6:34 pm

Going off the limited info it could be an increase in oxygen pickup through the bottling process. What hops? Was the keg purged with CO2?

https://www.bjcp.org/faults.php

Onthebrew

Re: Grassy aroma

Post by Onthebrew » Thu Nov 30, 2017 1:09 pm

Sadfield wrote:
Wed Nov 29, 2017 6:34 pm
Going off the limited info it could be an increase in oxygen pickup through the bottling process. What hops? Was the keg purged with CO2?

https://www.bjcp.org/faults.php
Cheers for that. That’s a useful link. Could be oxygen pick up then. Previously had it when dry hopping but nine this time. If it’s oxygen then I guess it’s going to get worse?

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