Topics Topics Help/Instructions Help Edit Profile Profile Member List Register  
Search Last 1 | 3 | 7 Days Search Search Tree View Tree View  

Visit The Brewery's sponsor!
Brews & Views Bulletin Board Service * Brews and Views Archive 2003 * November 5, 2003 * Max. lbs. of grain in a sanke keg? < Previous Next >

  Thread Last Poster Posts Pages Last Post
  Start New Thread        

Author Message
 

Keith O. (216.39.170.42)
Posted on Wednesday, October 15, 2003 - 05:05 pm:   Edit Post Delete Post View Post/Check IP    Ban Poster IP (Moderator/Admin only)

I want brew a big beer. What is the max lbs.of grain a converted keg will hold?

Keith
 

Bill Pierce (24.141.63.119)
Posted on Wednesday, October 15, 2003 - 05:15 pm:   Edit Post Delete Post View Post/Check IP    Ban Poster IP (Moderator/Admin only)

It depends on whether you have a mash screen or false bottom, of course as well as the mash thickness, but 35 lbs. represents a reasonable maximum for a converted 15.5 gallon keg. You will need to be very careful when you sparge.
 

Drew Avis (209.226.137.106)
Posted on Wednesday, October 15, 2003 - 05:50 pm:   Edit Post Delete Post View Post/Check IP    Ban Poster IP (Moderator/Admin only)

I think the mash thickness is the biggest factor. I easily got 36 lbs into my tun on Monday, but mashed on the thick side at 1 qt/lb. I had probably 4L left headspace, and could have probably hit 40 lbs if I wanted to go right to the rim. These numbers leave no room for an infusion, so you need to do a decoction if you want to mashout (or miss your strike temp, like I did).

35 is the max for comfortable "non-sticky floors" mashing.
 

Drew Avis (209.226.137.108)
Posted on Wednesday, October 15, 2003 - 05:54 pm:   Edit Post Delete Post View Post/Check IP    Ban Poster IP (Moderator/Admin only)

PS - I just checked StrangeBrew, and it predicts that a 45 lb mash at .9 qt/lb will occupy 14.8 gallons US. YMMV.
 

Keith O. (216.39.170.42)
Posted on Wednesday, October 15, 2003 - 06:12 pm:   Edit Post Delete Post View Post/Check IP    Ban Poster IP (Moderator/Admin only)

Thanks guys. I've brewed with 37.5 lbs. and this recipe calls for 42.5. Looks like I will just brew it.

Keith
 

Hophead (167.4.1.38)
Posted on Wednesday, October 15, 2003 - 06:52 pm:   Edit Post Delete Post View Post/Check IP    Ban Poster IP (Moderator/Admin only)

This thread officially makes the top 10 list, hooray.

40lbs has been declared the practical maximum for a sanke keg mashtun... Sparging gets tricky...
 

Walt Fischer (24.221.196.114)
Posted on Wednesday, October 15, 2003 - 06:53 pm:   Edit Post Delete Post View Post/Check IP    Ban Poster IP (Moderator/Admin only)

36 is the most ive ever stuffed into mine...
Too much and youll start effecting eff....

Walt
Lama Brewery
----
 

Andrew Bales (199.64.0.252)
Posted on Friday, October 17, 2003 - 12:04 pm:   Edit Post Delete Post View Post/Check IP    Ban Poster IP (Moderator/Admin only)

What did you guys hit with that much poundage in a sanke with a false bottom? SGs? I too am thinking about another barleywine, this time 10g all grain. I have never done more than 27# and that had lots of rye and wheat and was a pain in the ••• to sparge.
 

Bill Pierce (24.141.63.119)
Posted on Friday, October 17, 2003 - 12:15 pm:   Edit Post Delete Post View Post/Check IP    Ban Poster IP (Moderator/Admin only)

Assuming 75 percent efficiency and a "normal" recipe, you can achieve an S.G. of 1.095 by mashing 35 lbs. of grain for a 10 gallon batch. With a little caution you could mash 37 lbs. for 1.100.
 

Drew Avis (209.226.137.107)
Posted on Friday, October 17, 2003 - 02:35 pm:   Edit Post Delete Post View Post/Check IP    Ban Poster IP (Moderator/Admin only)

I assumed 65% efficiency, and got 70% for 36 lbs. I typically sparge about 13 gals, boil down to 12 or so, then top up the keg to 15.5 just before I chill to get about 15 gals of brew.

If you get 70% or lower from a big mash, you can continue to sparge a small beer to collect the remaining 10-20% of sugars. I got 5 gals of a nice "mild" out of that big mash (topped the mash up with some carafa, carafoam, and carastan to "freshen" it before collecting the small beer).
 

Walt Fischer (24.221.196.114)
Posted on Friday, October 17, 2003 - 04:27 pm:   Edit Post Delete Post View Post/Check IP    Ban Poster IP (Moderator/Admin only)

Bill's numbers are about what happens when i make 10 gallons of my 11.3% Rochefort 10 clone in my converted kegs. OG 1.096 then take it down to 1.010-1.012.
Course i get about 73% eff, and drop in some sugar to make up the difference :)

BrewON!
Walt
Lama Brewery
----
 

Joe Alf (65.139.148.60)
Posted on Saturday, October 18, 2003 - 12:55 am:   Edit Post Delete Post View Post/Check IP    Ban Poster IP (Moderator/Admin only)

I don't know about the math but I was getting 39+ lbs in my 13.5 keg and I just got the new 15,it better hold 45.I guess I could always jump on it again.
 

Walt Fischer (24.221.196.114)
Posted on Saturday, October 18, 2003 - 11:35 pm:   Edit Post Delete Post View Post/Check IP    Ban Poster IP (Moderator/Admin only)

45?

no way.. heh
Unless you want your water to grains ratio to be less then 1.0 which, in my opinion, youll not get as good a conversion...
Ill bet youd get a higher OG with 35 then with 45 at that ratio..

Walt
----
 

Kentucky Dan (68.18.72.235)
Posted on Saturday, October 18, 2003 - 11:43 pm:   Edit Post Delete Post View Post/Check IP    Ban Poster IP (Moderator/Admin only)

I got 42#'s once, but it was extremely thick. Definitely took longer to sparge and only got about 65% efficiency.

Dan
 

Andrew Bales (199.64.0.252)
Posted on Monday, October 20, 2003 - 01:01 pm:   Edit Post Delete Post View Post/Check IP    Ban Poster IP (Moderator/Admin only)

Thanks guys. Sounds like its time to do Walt's Rochfort 10 clone and then take Drew's carastan idea to it for a small beer as second runnings. Sure beats the hell out of a second mash and I get 15 gallons of beer out of this, 10g Roch and 5g Pale Ale or brown.
 

Joe Alf (65.141.57.9)
Posted on Monday, October 20, 2003 - 10:44 pm:   Edit Post Delete Post View Post/Check IP    Ban Poster IP (Moderator/Admin only)

Just returned from helping a friend brew a 20g batch of fruit beer base -20% wheat w low hops . He used 42lbs grain in a 13g keg.After a stuck mash,we decocted,underlet and sparged our way to 20g @ 1.060 or there abouts. 5g for Wit[my old cake]5g rasberry,5g apple...... He's got a bro getting hitched in Nov. It can be done but it's a pain.

Add Your Message Here
Posting is currently disabled in this topic. Contact your discussion moderator for more information.