Does anyone else only take a pre-boil gravity? - Home Brew Forums
Register Now For Free!

Home Brew Forums > Home Brewing Beer > General Beer Discussion > Does anyone else only take a pre-boil gravity?

Reply
 
Thread Tools
Old 07-26-2010, 11:48 AM   #1
whatsleftofyou
Third Eye Pried Wide
HBT_LIFETIMESUPPORTER.png
 
whatsleftofyou's Avatar
Recipes 
 
Dec 2007
U.P. of MI
Posts: 640
Liked 16 Times on 16 Posts



For probably my last 5 batches or so, I've only been taking a pre-boil gravity reading. As long as I'm not adding DME and hit my volume into the fermenter (which is the case 90% of the time) I don't see the point. I used to take both, but the numbers always came out, save MAYBE a point. Any thoughts on this? The way I see it, it's another few ounces of beer in my glass.
__________________
My Bar Build
Primary: Sweet stout w/ pink peppercorns, Kriek, American Brown
Secondary: American Barleywine
On Tap: Pumpkin Spice Ale, Coffee Blonde, Belma APA
Bottled: PB&J Sweet Stout, Rhubarb Berliner Weisse


 
Reply With Quote
Old 07-26-2010, 12:11 PM   #2
Yooper
Ale's What Cures You!
HBT_ADMIN.png
 
Yooper's Avatar
Recipes 
 
Jun 2006
UP of Michigan, Winter Texan
Posts: 69,751
Liked 8020 Times on 5604 Posts


Quote:
Originally Posted by whatsleftofyou View Post
For probably my last 5 batches or so, I've only been taking a pre-boil gravity reading. As long as I'm not adding DME and hit my volume into the fermenter (which is the case 90% of the time) I don't see the point. I used to take both, but the numbers always came out, save MAYBE a point. Any thoughts on this? The way I see it, it's another few ounces of beer in my glass.
That's what I've been doing too most of the time, too. I mean, if I've hit my preboil gravity with 7 gallons, then I HAVE to hit my post-boil gravity with 5.25 gallons. The sugar is in there- it can't just go away.

Maybe it's just a Yooper thing?
__________________
Broken Leg Brewery
Giving beer a leg to stand on since 2006

 
Reply With Quote
Old 07-26-2010, 12:44 PM   #3
dale1038
 
dale1038's Avatar
Recipes 
 
Sep 2008
Louisville, KY
Posts: 428
Liked 10 Times on 10 Posts


I only take a Post-boil gravity. If I miss my numbers so bad I have to add DME, ....well, that just doesn't happen anymore.

 
Reply With Quote
Old 07-26-2010, 01:16 PM   #4
KMOX
Recipes 
 
May 2007
College Station, TX
Posts: 41

I have been in the habit of taking the pre-boil gravity measurement lately, and I'll tell you why:

1) I make a lot of fine-tune adjustments to my system, and I vary the water/grist ratio of my mash, depending on the beer style. I also opt for mash out and switch back and forth between fly sparge and batch sparge, depending on the system setup that I'm using that brewday. It's good to get an idea of what my efficiency is.

2) If you know your pre-boil gravity, you can make adjustments to your hopping rate accordingly. One time I got 10% BETTER efficiency than I was planning, so I had to up my hopping charges to be sure that I'd hit my IBU's.

3) In the chaos of cleaning and chilling, I usually forget to take a post-boil reading. Like was said, if you at least have a pre-boil reading, the post-boil reading shouldn't be a surprise - the sugars don't evaporate!
__________________
I don't drink no more. And I don't drink no less.

 
Reply With Quote
Old 07-26-2010, 01:23 PM   #5
Tinga
 
Tinga's Avatar
Recipes 
 
May 2010
MN
Posts: 1,122
Liked 39 Times on 30 Posts


the sugars don't evaporate but the water does. i would think this would make it heavier because there is less water for the sugar to be in so wouldnt it be more concentrated and more heavy?

 
Reply With Quote
Old 07-26-2010, 01:27 PM   #6
ArcaneXor
 
ArcaneXor's Avatar
Recipes 
 
Nov 2007
Posts: 4,572
Liked 118 Times on 105 Posts


I don't usually take any gravity readings any more, unless I am making an "unusual" beer for my setup.

 
Reply With Quote
Old 07-26-2010, 02:16 PM   #7
archiefl98
Recipes 
 
Nov 2009
Upstate NY
Posts: 329
Liked 6 Times on 5 Posts


I take post-boil. If I hit what I wanted (which I do) then cool. If I don't hit what I want, well -- that hasn't happened yet.

I do take preboil and postboil for someone else brewing with my equipment. Just because there are so many variables (crush, grain, recipe formulation, etc) that they don't get the same efficiency that I do.
__________________


Fermenting: A few beers

Conditioning: A few other beers
Bottled: A few more beers
Kegged: Many beers
Next Brews: More beers than you could imagine

 
Reply With Quote
Old 07-26-2010, 02:24 PM   #8

I don't take pre-boil readings, either. But that's because, like Sly, I'm a rebel who lives on the edge . . . .




 
Reply With Quote
Old 07-26-2010, 02:27 PM   #9
arturo7
HBT_SUPPORTER.png
 
arturo7's Avatar
Recipes 
 
Apr 2007
Huntington Beach
Posts: 9,937
Liked 608 Times on 403 Posts


I takes both.
__________________
Hey, knock that shvt off. We're drinkin' here.

 
Reply With Quote
Old 07-26-2010, 02:34 PM   #10
samc
Recipes 
 
Aug 2008
Portland OR
Posts: 5,387
Liked 63 Times on 59 Posts


Almost always do a pre boil, the last brew I skipped it and of course I missed my FG numbers by a bit more than I like. First miss in a long time, it was not a good brew day.

Hopefully the end product will be good, first time back to liquid yeast in a long time.

 
Reply With Quote
Reply
Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Boil off gravity question lunchbox General Beer Discussion 3 02-02-2010 09:11 PM
Split boil or boil later? TXCrash General Beer Discussion 1 12-25-2009 01:09 AM
the boil looked really "funky" in the boil pot Brooda General Beer Discussion 9 11-16-2009 04:19 PM
Need help with pre-boil gravity agusus General Beer Discussion 10 09-30-2009 05:26 PM
Now there's some gravity for you mrbowenz General Beer Discussion 9 06-11-2009 08:57 PM


Forum Jump