How to Prepare/Toast/Char Oak For Beer

Homebrew Talk - Beer, Wine, Mead, & Cider Brewing Discussion Forum

Help Support Homebrew Talk - Beer, Wine, Mead, & Cider Brewing Discussion Forum:

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.

KingBrianI

Well-Known Member
Joined
May 23, 2008
Messages
3,513
Reaction score
157
Location
Wake Forest, NC
I started documenting this process in the 12-12-12 recipe formulation thread but it was suggested that I condense the info into one thread so it is more accessible to anyone interested.

Oaking beer is something we will all probably try at one time or another. Some of us will probably do it repeatedly. And sure, you can buy the little cubes from the homebrew store, or the shavings if you don't know better. Or even a barrel if you're gangster. But here's something else you might want to try. It's more fun, allows for better control, and let's you play a bigger role in the whole oaking process.

More in depth information can be found on the web of cooking times, toast levels, resultant flavors, etc. (usually on websites devoted to a hobby we aren't allowed to discuss on this site) for those who want more info. The following is simply a quick documentation of one of my runs through the process.

For the oak I toasted below, I decided to age them in some corn whiskey before adding to a beer in order to mellow them out a little. The first time you use a piece of oak it will give a lot of flavor to whatever it is stored in. The second time it will be less, and so on.

First, go find a nice, well-seasoned chunk of White Oak. Make sure it is White Oak, don't try this with Red Oak or Willow Oak or any other Oak. White Oak is what you want. And don't ignore the "well-seasoned" part either. Use oak that has seasoned for at least 2 years. And the more weathering it has received, the better. Don't worry if it was the top piece on the woodpile. All that rain has washed out some of the harsher tannins and created a nice starting point for you. Just shave off the gray layer.

Now, split off a piece from the chunk of well-seasoned white oak.
D7K_3313.jpg


Cut the split off piece into two jar-sized pieces.
D7K_3314.jpg


Put the pieces into aluminum foil and wrap them up.
D7K_3315.jpg


D7K_3316.jpg


Toast in the oven for 1.5 hrs at 400F then 0.5 hr at 450 F. This is what you get. (By the way, it smells amazing at this point)
D7K_3318.jpg


I decided to test two different things. One jar will get the toasted oak as is, the other will get charred oak.
D7K_3322.jpg


So I used a torch to char the outside of one of the pieces of oak. Immediately after charring, drop into a glass of water. This not only puts out the fire, but causes the charcoal on the outside to "puff" slightly and develop micro-fissures. The charcoal on the oak like this helps filter impurities from whatever you put it in and "cleans" it up.
D7K_3323.jpg


Here's what you end up with.
D7K_3325.jpg


Comparison of the raw oak, to the toasted, to the charred.
D7K_3327.jpg
 
Now into the jars to start aging the oak.
D7K_3328.jpg


I'm letting them sit in here for several months to get most of the oakiness out.
D7K_3329.jpg


After a couple of months, here is what you get:

D7K_3841.jpg


D7K_3849.jpg


D7K_3859.jpg


The corn whiskey with the toasted oak stick is much lighter in color, and the aroma is still of the corn cob and husk the white spirit had. The musty corn aroma has definitely mellowed and reduced, but there's not much oak making it into the aroma. The flavor has picked up oak though, and I was surprised by how much it tasted like scotch whisky. The corn character is all but gone from the flavor leaving mostly the light oak flavor you get in scotch. If there was a bit of peat smokiness in there, many would probably mistake it for scotch, in fact.

The corn whiskey with the toasted and charred oak is of course much darker, but the aroma and flavor are where it really shines. The aroma is smooth, sweet and the corn character is gone. In it's place are the aromas of toasted marshmallow, raisins, and caramel. It's pretty great. The flavor is similar. Much smoother than the other jar, and with much more flavor from the oak. It is the hands-down favorite for me.

At this point you can continue to let the oak mellow in the spirits, or you can move it to whatever beer you want to add it to.
 
Wow- nice write up and photos! We don't have white oak where I live, but I would certainly do that if I had the chance. Maybe when I go visit my brother I can grab a chunk from his woodpile and borrow his oven (can't move firewood, but baked oak would be fine) and bring home a couple of pieces to try!
 
Just wanted to say, congratulations on being awesome. I'm just about to conduct some experiments using oak chips and was looking for some information on how best to go about toasting/charring. Finding this post with all the pictures and well-written commentary was gold. Covers all my questions and more. Cheers!
 
After trying a few different methods, for adding cask flavor to beers, I've found this to be by far the best out there. I also can't say enough good things about how this smells when roasting! The room will pick up all the great notes of a fine bourbon...it smells so good! But also, the proof is in the aroma. If this chunk of wood has all the great notes of bourbon, it's sure going to pass the flavors along. Those chips, and other adjuncts bought can't quite compare in my experience.

Oh, I've used this with hickory as well and it turned out great...maybe next I'll try some local cut cherry.
 
Back
Top