 |
|
03-05-2012, 11:10 PM
|
#1
|
|
Feedback Score: 0 reviews
Join Date: Jun 2010
Location: Glen Cove, NY
Posts: 284
Liked 8 Times on 8 Posts Likes Given: 44
|
Undershot my OG!
|
|
Hey guys, I have taken wayyyyy too long to finally start caring about my gravity readings but the time has finally come. Today I brewed Edwort's Rye IPA and am fairly confident that my final volume is close enough to what it should be. However, with an expected OG of 1.064, I wound up with 1.050. Can anyone explain to me why this could be happening? Also, should I do anything to boost the OG a bit, or should I just leave it be and enjoy a "light" version of this beer?
|
|
|
03-05-2012, 11:12 PM
|
#2
|
|
Feedback Score: 0 reviews
Join Date: Jun 2010
Location: Glen Cove, NY
Posts: 284
Liked 8 Times on 8 Posts Likes Given: 44
|
On a side note, this has definitely been a consistent issue with all of my brews.
|
|
|
03-06-2012, 12:19 AM
|
#3
|
|
Feedback Score: 1 reviews
Join Date: Nov 2010
Location: Solway, MN
Posts: 4,136
Liked 270 Times on 249 Posts Likes Given: 37
|
Who crushes your grains? The quality of the crush determines the efficiency with which you can extract the sugars. There is a trade off between getting poor efficiency with grains that are coarsely crushed and getting wonderful efficiency if you could just drain the runnings with that stuck sparge. Most LHBS would rather have you get poor efficiency than constantly dealing with stuck sparge.
|
|
|
03-06-2012, 12:29 AM
|
#4
|
|
Feedback Score: 0 reviews
Join Date: Dec 2010
Location: lincoln, ri
Posts: 1,195
Liked 20 Times on 17 Posts Likes Given: 1
|
You could just use a light or extra light DME to boost low OG. Take some of the wort and boil it again. Put in some DME and boil for 10 to 15 minutes.
__________________
Primary: Da Yooper's House Ale
Kegged: Oatmeal Stout
Bottled: Nothing
On my list to brew: I have no clue!!
|
|
|
03-06-2012, 12:54 AM
|
#5
|
|
Feedback Score: 0 reviews
Join Date: May 2011
Location: Lockport, Illinois
Posts: 226
Liked 1 Times on 1 Posts
|
Quote:
|
Originally Posted by Bisco_Ben
Hey guys, I have taken wayyyyy too long to finally start caring about my gravity readings but the time has finally come. Today I brewed Edwort's Rye IPA and am fairly confident that my final volume is close enough to what it should be. However, with an expected OG of 1.064, I wound up with 1.050. Can anyone explain to me why this could be happening? Also, should I do anything to boost the OG a bit, or should I just leave it be and enjoy a "light" version of this beer?
|
If you want it balanced, hops to alcohol you could have added DME at the end of the boil until you hit the OG. Boil longer and that will raise the OG also. Missing the specified OG could have happens in the mash, water calculations etc.
Sparge? But you missed it by 14 points. I don't know what the hop additions were, but my guess would be that it's going to be bitter, might be good. Something is going on in the mash area though, crush, never fully converted?
|
|
|
03-06-2012, 01:29 AM
|
#6
|
|
Feedback Score: 0 reviews
Join Date: Jun 2010
Location: Glen Cove, NY
Posts: 284
Liked 8 Times on 8 Posts Likes Given: 44
|
I mashed for 70 minutes at 154 degrees and did not lose ANY heat during that time period. I have a feeling that my LHBS might be the culprit with a too-coarse grind. I added the yeast already so i suppose that the extra DME situation is already out the window. time to just sit back and enjoy it for what it is?
|
|
|
03-06-2012, 01:52 AM
|
#7
|
|
Feedback Score: 0 reviews
Join Date: Mar 2009
Location: Washington St.
Posts: 182
Liked 1 Times on 1 Posts
|
I agree with the crushing of grain. I'm a batch sparger. I have had vast differences using two different companies crushing the grain. At first I didn't think there could be that much difference. But I have found I had to use almost 2 pounds more grain from a certain businness I purchase from to get the same OG, using the same method of mashing and sparging.
|
|
|
03-06-2012, 01:11 PM
|
#8
|
|
Feedback Score: 0 reviews
Join Date: May 2011
Location: Charlottesville, Virginia
Posts: 14
Liked 1 Times on 1 Posts
|
You could still boost the alcohol content by boiling some DME in water, chilling, and then pitching directly into an active fermentation. Can't say it will do much for the flavor though. Never done it myself but I know it's possible.
|
|
|
03-06-2012, 01:45 PM
|
#9
|
|
Feedback Score: 1 reviews
Join Date: Mar 2012
Location: Lynchburg, Virginia
Posts: 407
Liked 8 Times on 8 Posts
|
Logically what would make sense to me as a more novice brewer is:
Your not boiling down enough (however you are getting down to your desired volume)
Your equations for estimated OG are off, and you aren't using enough grain, the enzymes aren't being activated enough in the mash tun to convert starches, which would be the logical result of not enough initial aggravation or, the grains are milled a little coarser. You could try your current approach with a 90 minute infusion step, which should extract more from coarser grains, or ask your home brew supplier to move the wheels a bit closer in the mill for you in order to end up with slightly finer milled grains. Logically I wouldn't do this if you have had stuck sparges. Alternatively you could be not using enough sparge water to effectively rinse the grains of wort. I would increase the temperature 2 degrees, and increase the infusion step time to 80-90 minutes, see if you do not see an equally consistent rise in your OG. I am a novice, and learning myself so just trying to interact with the little I know 
|
|
|
03-06-2012, 01:47 PM
|
#10
|
|
Frau Administrator
Feedback Score: 0 reviews
Join Date: Jun 2006
Location: Upper Michigan
Posts: 52,337
Liked 2091 Times on 1603 Posts Likes Given: 110
|
Quote:
Originally Posted by Riffraff3055
You could still boost the alcohol content by boiling some DME in water, chilling, and then pitching directly into an active fermentation. Can't say it will do much for the flavor though. Never done it myself but I know it's possible.
|
It's easy to get to where you want to be on the OG just by adding some DME. Boil it in a little water for 10 minutes or so, cool, then gently add to the fermenter.
__________________
Broken Leg Brewery
Giving beer a leg to stand on since 2006
|
|
|
| Thread Tools |
|
|
| Display Modes |
Linear Mode
|
|
|
|