DIY oak essence, water soluble flavors vs alcohol soluble flavors - Home Brew Forums
Home Brew Forums > Home Brewing Beer > Brew Science > DIY oak essence, water soluble flavors vs alcohol soluble flavors

Reply
 
Thread Tools
Old 08-18-2011, 09:59 PM   #1
Nateo
Recipes 
 
Jul 2010
Bennett Springs, MO
Posts: 2,050
Liked 39 Times on 30 Posts



I've read about people making their own oak essence, either by steeping in hot water or steeping in alcohol for some length of time.

Does anyone know which flavors would come out and which you'd lose in water, and in alcohol? I assume there are flavor compounds in the oak that aren't water soluble but are alcohol soluble.

I'll probably need to do an experiment on this, but I wanted to see if anyone has tried this already.


__________________
To paraphrase Dr. England - "Off-flavors smooth with time. So do mountains. Brew it right from the start!"

My blogsite: http://nateobrew.blogspot.com/

 
Reply With Quote
Old 08-30-2011, 06:52 PM   #2
audger
Recipes 
 
Apr 2011
., Connecticut
Posts: 1,497
Liked 43 Times on 42 Posts


ive never heard of a similar experiment, but what you suggest sounds about right. i would imagine chemicals like sap/rosin, terpines and fatty acids, and other stuff normally found in trees would be the alcohol soluble parts.

im sure there would be sugars and tannins that would be water soluble.


here is an interesting article on oak wood, kind of specifically about making oak barrels
http://homedistiller.org/oak.pdf

 
Reply With Quote
Old 08-30-2011, 07:08 PM   #3
Tubba
Recipes 
 
Aug 2011
Tjörn, Sweden
Posts: 154
Liked 2 Times on 2 Posts


Alcohol and water are prett similar in terms of solubility. From what I recall from chemistry, alcohol can dissolve some fats with very weak van der Waals action (i.e. short carbon chains) - however it is mostly hydrophilic and dominated by the hydrogen action of the OH group, which is why you can dissolve a practically infinite amount of alcohol in any amount of water.

 
Reply With Quote
Reply
Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Ward reports for my water, Bear Gulch Water District (on the SF Peninsula) wuertele Brew Science 6 04-11-2013 06:14 PM
Removing Metallic Flavors From Beer Using EDTA Gasman09 Brew Science 23 11-15-2011 09:46 PM
Weird Off-Flavors - Here's my water profile Kayos Brew Science 14 02-20-2011 12:14 AM
Commercial examples of different flavors/molecules nicoharris Brew Science 3 04-13-2010 02:32 PM
Book or resource for malts/hops and what flavors they add to beer LeeF Brew Science 9 05-08-2009 01:30 AM


Forum Jump