Happy HolidaySs Giveaway - Winners Re-Re-Re-Re-Drawn - 24 hours to Claim!

Get your HBT Growlers, Shirts and Membership before the Rush!


Home Brew Forums > Home Brewing Beer > General Techniques > Dry Hopping (or other post fermentation additions) - Why No Stirring?
Reply
 
LinkBack Thread Tools
Old 12-08-2012, 05:39 PM   #1
Joeywhat
Feedback Score: 0 reviews
Recipes 
 
Join Date: Feb 2009
Location: Dearborn Heights, MI
Posts: 203
Liked 9 Times on 8 Posts
Likes Given: 1

Default Dry Hopping (or other post fermentation additions) - Why No Stirring?

I'm curious, why is stirring the beer not required when dry hopping, or adding other ingredients like vanilla beans or other solids?

When I added my vanilla into my keg, I dunked it a few times with a sanitized racking cane, but have otherwise left it alone. Obviously, after a few days I have some wonderful vanilla flavors and aromas in it. How does it distribute itself so well? The beans (in a hop bag) float on top, the dip tube is on the bottom.

I understand that it's not needed, I'm not arguing that, I'm just curious to know the science behind how it distributes throughout the whole beer while just floating on top.

__________________
Joeywhat is offline
 
Reply With Quote Quick reply to this message
Old 12-09-2012, 02:05 AM   #2
mtnagel
HBT_LIFETIMESUPPORTER.png
Feedback Score: 6 reviews
Recipes 
 
Join Date: Apr 2012
Location: Cincinnati, Ohio
Posts: 2,063
Liked 187 Times on 148 Posts
Likes Given: 172

Default

For hops, the hops absorb the wort and the flavors come out into solution and then try to come to equilibrium with the entire volume of liquid in the container. Similar for the vanilla, the flavors are extracted out and disperse throughout the wort.

To simulate it, take a glass of water and drop food coloring it in and you can see how the color flows around and eventually equilibrium will be reached where all the water will be colored. Creamer in coffee would work too.

__________________
mtnagel is offline
 
Reply With Quote Quick reply to this message
Old 12-09-2012, 02:15 AM   #3
Revvy
Post Hoc Ergo Propter Hoc
HBT_LIFETIMESUPPORTER.png
Feedback Score: 0 reviews
 
Revvy's Avatar
Recipes 
 
Join Date: Dec 2007
Location: "Detroitish" Michigan
Posts: 40,804
Liked 2776 Times on 1660 Posts
Likes Given: 3489

Default

Because once fermentation has ceased, you want to keep any agitation of your beer to a MINIMUM if any, otherwise you run the risk of oxidation. And your beer becomes liquid cardboard.

Flavors seem to mingle themselves ok without our help anyway. Things become waterlogged and that releases the flavors, or they slowly fall through the beer, or they release oils, or they're liquids themselves and they mix on their own, or are dilluted- all those things allow their flavors to affect the beer without our help.

Beer's pretty cool that way...it really doesn't need excess fiddling on our behalf. It tends to do what it needs to do on it's own....

__________________

Like my snazzy new avatar? Get Sons of Zymurgy swag, here, and brew with the best.

Revvy's one of the cool reverends. He has a Harley and a t-shirt that says on the back "If you can read this, the bitch was Raptured. - Madman

I gotta tell ya, just between us girls, that Revvy is HOT. Very tall, gorgeous grey hair and a terrific smile. He's very good looking in person, with a charismatic personality... he drives like a ****ing maniac! - YooperBrew

Revvy is offline
 
Reply With Quote Quick reply to this message
Old 12-09-2012, 04:49 AM   #4
nukebrewer
Brew the brew!
HBT_LIFETIMESUPPORTER.png
Feedback Score: 11 reviews
 
nukebrewer's Avatar
Recipes 
 
Join Date: Oct 2008
Location: Groton, CT
Posts: 5,039
Liked 2679 Times on 1593 Posts
Likes Given: 5847

Default

The scientific principle is referred to as diffusion. It's the tendency of a substance in solution to attain an equilibrium concentration throughout the solution.

__________________

The only thing more asinine than stupid rules is the enforcement of rules simply because they are the rules.

Inhopsicated: A Beer Blog

Inhopsicated on Twitter

nukebrewer is online now
Revvy Likes This 
Reply With Quote Quick reply to this message
Reply



Quick Reply
Message:
Options
Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Late Hop Additions and/or Dry Hopping tigerface Recipes/Ingredients 1 11-29-2012 02:09 PM
Why use late hop additions when dry hopping? strambo General Beer Discussion 6 05-07-2012 07:51 PM
Proper post fermentation sugar additions? Schnitzengiggle General Techniques 2 06-15-2010 01:37 AM
Late hop additions instead of dry hopping? nasmeyer Beginners Beer Brewing Forum 8 06-04-2009 02:47 PM
Are 5 min hop additions necessary if you're dry-hopping? shlap All Grain & Partial Mash Brewing 4 04-01-2007 10:49 PM



Newest Threads

LATEST SPONSOR DEALS