Subject pretty much says all. I have a keg of Guinness that I can't
really consume quickly (just me) It's in a kegerator and kept under
pressure. Maybe it's just me but it seems to be tasting a bit sour
lately. I've had the keg for about 2 months. TIA for any info!

PS. Is Guinness in the keg pasteurized? I can't get a straight answer
on that either from web searches.

a écrit :

Subject pretty much says all. I have a keg of Guinness that I can't
really consume quickly (just me) It's in a kegerator and kept under
pressure. Maybe it's just me but it seems to be tasting a bit sour
lately. I've had the keg for about 2 months. TIA for any info!


well, AFAIK, even under inert gas pressure, one should be able to see
the end of a keg within five days, prefrably three. Not just because of
the keg itself, but also because of the tubing between the keg and your
glass, which is neither under pressure, norwashed in-between sessions...

PS. Is Guinness in the keg pasteurized? I can't get a straight answer
on that either from web searches.

Yes, enven the version for Ireland was switched to pasteurised ber two
years or so ago.


--
Warning : you may encounter French language beyond this point.

Battez-vous, égorgez-vous, nous gardons vos sous.
(F'murrr)

Laurent Mousson, Berne, Switzerland

WHAT?! You mean you have to consume an entire keg in five days? Are you
crazy? There would be no point in having the kegerator. It wasn't
tasting the least bit different even after 2 weeks ... now two months
later I'm noticing a sourness (i think)

Draft beer is usually pasteurized. However the beer in the tubing can go
bad. Beer lines need routine cleaning. Clean the beer lines and your
sourness may disappear.
If you are only using CO2 on the Guinness, its possible that a buildup of
carbonic acid might be responsible for the sour taste. Guinness is usually
dispensed with a 30%CO2 / 70%N2 blend
wrote in message
ups.com...
Subject pretty much says all. I have a keg of Guinness that I can't
really consume quickly (just me) It's in a kegerator and kept under
pressure. Maybe it's just me but it seems to be tasting a bit sour
lately. I've had the keg for about 2 months. TIA for any info!

PS. Is Guinness in the keg pasteurized? I can't get a straight answer
on that either from web searches.

It appears I can't get a straight answer to my simple question of how
LONG a keg of Guinness generally lasts (for taste) under pressure and
refrigeration. YES I'm using beer gas mix and YES of course I clean my
lines (beer grows mold rather quickly). As far as the beer gas mix -
it's one common to gas suppliers in the area ... they in fact call it
"beer gas" and it has the percentage of nitrogen already mixed in with
the CO2.

In article .com, writes:


It appears I can't get a straight answer to my simple question of how
LONG a keg of Guinness generally lasts (for taste) under pressure and
refrigeration. YES I'm using beer gas mix and YES of course I clean my
lines (beer grows mold rather quickly). As far as the beer gas mix -
it's one common to gas suppliers in the area ... they in fact call it
"beer gas" and it has the percentage of nitrogen already mixed in with
the CO2.

"Stout gas" is usually how it's referred to.

I've a Guinness keg here with separate N2 and CO2 tanks but that shouldn't
be a difference. I keep a keg for 30-40 days without any noticable degrad-
ation in taste.

I clean the lines with every new keg. I take the faucet apart and clean it
well too.

Are you sure you are getting a proper stout gas mix? Depending upon where
you get your tanks filled, they may do other gases. My supplier also fills
O2 for medical purposes. When I get my tanks fill, he charges me an extra
$2 to purge the manifold of other gases with CO2 and the N2. Not a major
fee considering I get each tank for about $15.
--
VAXman- A Bored Certified VMS Kernel Mode Hacker VAXman(at)TMESIS(dot)COM

"Well my son, life is like a beanstalk, isn't it?"

wrote:
It appears I can't get a straight answer to my simple question of how
LONG a keg of Guinness generally lasts (for taste) under pressure and
refrigeration.

Only one person can give the answer about how long
a keg of Guinness lasts under the unique conditions of
your kegerator. He, apparently, is still collecting
data.
--
Joel Plutchak "Eat everything. Have fun." - Julia Child.
plutchak at [...]