Spike Brewing 12.5 Conical Fermenter Giveaway!

Home Brew Forums > Wine, Mead, Cider, Sake & Soda > Cider Forum > Head space in primary fermenter

Reply
 
LinkBack Thread Tools
Old 08-31-2011, 10:16 PM   #1
bontybont
Feedback Score: 0 reviews
Recipes 
 
Join Date: Aug 2011
Posts: 3
Default Head space in primary fermenter

Hi,

I am brewing a new cider and wanted to do an experiment batch before committing further to a larger one.

If I only fill my primary fermenter up half way will the extra headspace cause any issues with my brew?

Any help would be great, thanks.

__________________
bontybont is offline
 
Reply With Quote Quick reply to this message
Old 09-01-2011, 12:50 AM   #2
oldmate
HBT_SUPPORTER.png
Feedback Score: 0 reviews
Recipes 
 
Join Date: Jun 2010
Location: Sydney, Australia
Posts: 869
Liked 16 Times on 14 Posts
Likes Given: 1

Default

It would be fine if you were bottling immediately after primary but if you have any plans of aging it then you run a high risk of oxidation/infection. I suggest either buying a smaller fermenter OR adding yeast directly to the jug/bottle. I do that and leave the cap slightly loose to allow CO2 to be removed and it turns out fine. It is only in there for a week or so then to the fridge to crash!

__________________
Primary: Cherry Melomel

Secondary:

Bottled: JAOM, Amber Ale
oldmate is offline
 
Reply With Quote Quick reply to this message
Old 09-01-2011, 01:09 AM   #3
gstrawn
Feedback Score: 0 reviews
Recipes 
 
Join Date: Jun 2011
Location: Athens, Ga
Posts: 373
Liked 22 Times on 16 Posts

Default

Co2 is more dense than air and therefore sits below the oxygen layer. It should push the oxygen layer out the top of the fermenter so there shouldn't be an significant oxygenation. I say do it. That's just my 2 cents

__________________
gstrawn is offline
 
Reply With Quote Quick reply to this message
Old 09-01-2011, 01:11 AM   #4
janivar123
Feedback Score: 0 reviews
Recipes 
 
Join Date: Apr 2011
Location: porsgrunn norway, lol
Posts: 554
Liked 4 Times on 3 Posts
Likes Given: 3

Default

If your cold crashing long before botteling headspace might be an issue
Exsept for that the beer will give off co2 before you get enough negative pressure to cause a problem

__________________
janivar123 is offline
 
Reply With Quote Quick reply to this message
Old 09-01-2011, 03:14 AM   #5
bontybont
Feedback Score: 0 reviews
Recipes 
 
Join Date: Aug 2011
Posts: 3
Default

Thanks everyone for your input. Lots of good ideas to consider.

I like your idea old mate of brewing the experiment in the jug/bottle.

If it turns out well, I will do a full batch in my primary fermenter, then cold crash and bottle it.

__________________
bontybont is offline
 
Reply With Quote Quick reply to this message
Old 09-01-2011, 05:15 AM   #6
oldmate
HBT_SUPPORTER.png
Feedback Score: 0 reviews
Recipes 
 
Join Date: Jun 2010
Location: Sydney, Australia
Posts: 869
Liked 16 Times on 14 Posts
Likes Given: 1

Default

That would be the best idea. What everyone else has said is true to a degree but if you consider any type of aging the gases will seek equilibrium which means the introduction of oxygen.

__________________
Primary: Cherry Melomel

Secondary:

Bottled: JAOM, Amber Ale
oldmate is offline
 
Reply With Quote Quick reply to this message
Reply


Quick Reply
Message:
Options
Thread Tools