Beer not clearing past a certain line in secondary

Beer not clearing past a certain line in secondary

Post by Christopher Forger » Fri, 12 Apr 1996 04:00:00



  Hi all, I've been observing some weird activity (or lack of) in my
secondary.

  My beer has been steadly clearing since transfering to my secondary,
and is now a even dark colour. No difference can be detected
throughout the carboy under natural light conditions, but when you
shine a light through the brew,  I've noticed that there is a very
noticeable division layer where the beer on top is crystal clear, and
the beer below is cloudy.

  This division line hasn't moved for about 4 days, and it's not just
stuff stuck to the sides (a slight knock to the carboy will cause the
'line' to sway).  It's almost like a thermal layer, but I can't see
that happening in a carboy.

  Anyone see this before? I'm getting close to three weeks time since
I added the yeast to the primary, and I want to bottle.

 Only interesting note was the primary fermentation was a tad high..
Tempratures were close to 28C (80F) for a few days before I had a
chance to slowly bring it down to a reasonable temprature.

 
 
 

Beer not clearing past a certain line in secondary

Post by Dave Whitm » Fri, 12 Apr 1996 04:00:00


Quote:

>   Hi all, I've been observing some weird activity (or lack of) in my
> secondary.

>   My beer has been steadly clearing since transfering to my secondary,
> and is now a even dark colour. No difference can be detected
> throughout the carboy under natural light conditions, but when you
> shine a light through the brew,  I've noticed that there is a very
> noticeable division layer where the beer on top is crystal clear, and
> the beer below is cloudy.

>   This division line hasn't moved for about 4 days, and it's not just
> stuff stuck to the sides (a slight knock to the carboy will cause the
> 'line' to sway).  It's almost like a thermal layer, but I can't see
> that happening in a carboy.

>   Anyone see this before? I'm getting close to three weeks time since
> I added the yeast to the primary, and I want to bottle.

I've seen this in my beers, but don't have a great explanation.  I always
thought it was yeast sedimentation; as it settles, the top clears first.
Perhaps a temperature or pH change stopped the yeast flocculating, and
thus sedimentation stopped after a while?

I notice this most often when adding gelatine to my secondary.  If I don't
mix it in, just pour it in the top, I get a layer that clears very
quickly, followed by slower clearing of the bottom as the gelatine
diffuses downward.

--
Dave Whitman             "The opinions expressed are those of the

                          They made me say that.  Really.

 
 
 

Beer not clearing past a certain line in secondary

Post by Tim Robins » Fri, 12 Apr 1996 04:00:00




Quote:

>>   Hi all, I've been observing some weird activity (or lack of) in my
>> secondary.

>>   My beer has been steadly clearing since transfering to my secondary,
>> and is now a even dark colour. No difference can be detected
>> throughout the carboy under natural light conditions, but when you
>> shine a light through the brew,  I've noticed that there is a very
>> noticeable division layer where the beer on top is crystal clear, and
>> the beer below is cloudy.

>>   This division line hasn't moved for about 4 days, and it's not just
>> stuff stuck to the sides (a slight knock to the carboy will cause the
>> 'line' to sway).  It's almost like a thermal layer, but I can't see
>> that happening in a carboy.

>>   Anyone see this before? I'm getting close to three weeks time since
>> I added the yeast to the primary, and I want to bottle.

>I've seen this in my beers, but don't have a great explanation.  I always
>thought it was yeast sedimentation; as it settles, the top clears first.
>Perhaps a temperature or pH change stopped the yeast flocculating, and
>thus sedimentation stopped after a while?

>I notice this most often when adding gelatine to my secondary.  If I don't
>mix it in, just pour it in the top, I get a layer that clears very
>quickly, followed by slower clearing of the bottom as the gelatine
>diffuses downward.

I've found that racking again will clear that second layer very quickly (for
me, usually within 24 hours).

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