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Home Brew Forums > Home Brewing Beer > All Grain & Partial Mash Brewing > recent problems with gravity
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Old 05-07-2012, 03:22 PM   #1
Firebat138
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Default recent problems with gravity

ok... not sure what we are doing wrong, if it is even us... But recently our gravs have been coming out low... i mean a point or two... LOW...

Just did the Raging bitch clone again... something like 34lbs grain total for a 10 gal batch... it came out at 1.060... almost two points low... Wiw did another batch od a similar grain bill same day and I added 2lbs of DME to the boil and the grav was 1.070... still low compared to what it was suppose to be and the DME helped... Here is what we are doing

mashing those two brews at 150 with calibrated therms... so we are close
mashing out and raising bed to 170 ish... Mashing for about an hour
we accumluate about 14 gals, then boil... we get about 11-12 gal left, etc.... everything seems right... what else am I missing... Could it be the grain? US... The economy? Should I not have sex the night before.... WHAT??

Thanx for any advice you can offer

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Kegs: Fresh Squeezed IPA, Orange Belgian,
Galactic Black IPA, Miller Clone, Coffee Stout, Yoopers Pale Ale, Two Hearted Clone


Fermenting:
20 gal Galactic Black IPA, 10 gal Ypers Pale Ale,
10 gal Belgian WitX2, 10 Gal 2 Hearted Clone,10 gal Samhain Pumpkin, 10 gal Green Flash West Coast IPA
10 gal Coffee Stout,10 Gal Raging Beeatch, 10 Gal Hop Head IPA

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Old 05-07-2012, 03:44 PM   #2
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A point or two is nothing... Could simply be hydrometer deviation or temperature correction.

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Old 05-07-2012, 03:45 PM   #3
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nothing? They should be coming out at 1.079 and I am getting 1.058 or 1.060.... that seems like a lot to me...

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Kegs: Fresh Squeezed IPA, Orange Belgian,
Galactic Black IPA, Miller Clone, Coffee Stout, Yoopers Pale Ale, Two Hearted Clone


Fermenting:
20 gal Galactic Black IPA, 10 gal Ypers Pale Ale,
10 gal Belgian WitX2, 10 Gal 2 Hearted Clone,10 gal Samhain Pumpkin, 10 gal Green Flash West Coast IPA
10 gal Coffee Stout,10 Gal Raging Beeatch, 10 Gal Hop Head IPA

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Old 05-07-2012, 04:21 PM   #4
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Thats not a "point or two." Thats 10-20 points. Which I agree is substantial. Have you changed how you crush your grains? Also, post your entire recipe, it may help us narrow in.

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I love the sound of an airlock bubbling in the morning. It sounds like.....VICTORY.

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Originally Posted by TxBrew
It's now degenerating into nu uh and uh huhs and it no longer serves a point.
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Old 05-07-2012, 04:26 PM   #5
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oops... yeah... sorry.. i meant 20 points.... but you get the idea. :-)
The LHBS crushes, so I should ask if they changed anything up...

Grain Bill
———–
17.50 lb British Pale (Maris Otter)
1.50 lb Crystal 40L
1.00 lb Cara-Pils
Hops Schedule
—————-
1.00 oz Warrior [17.20 %] @60 min
0.50 oz Amarillo [7.20 %] @30 min
0.50 oz Columbus [14.40 %] @30 min
1.10 oz Columbus [14.40 %] @15 min
1.00 oz Amarillo Gold [7.20 %] @15 min
0.60 oz Columbus [14.40 %] @1 min
0.60 oz Amarillo [7.20 %] @1 min
2.00 oz Amarillo [7.20 %] Dry Hop for 11 days
Yeast
———
Belgian Ardennes (Wyeast Labs #3522)
- 2L starter (2010.09.02)

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Kegs: Fresh Squeezed IPA, Orange Belgian,
Galactic Black IPA, Miller Clone, Coffee Stout, Yoopers Pale Ale, Two Hearted Clone


Fermenting:
20 gal Galactic Black IPA, 10 gal Ypers Pale Ale,
10 gal Belgian WitX2, 10 Gal 2 Hearted Clone,10 gal Samhain Pumpkin, 10 gal Green Flash West Coast IPA
10 gal Coffee Stout,10 Gal Raging Beeatch, 10 Gal Hop Head IPA

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Old 05-07-2012, 04:45 PM   #6
BigB
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For this recipe, I get an OG of 1.057 (10 gallon batch). A 5 Gallon batch would be well in excess of 1.100, so I'm assuming this is a 5 gallon batch. I haven't checked it against Beersmith, I just quickly pounded it into Beercalculus. Also, I assumed Thomas Fawcett for the MO.


% LB OZ Malt or Fermentable ppg °L Late

87% 17 8 Maris Otter Malt (Thomas Fawcett) info 37 3 ~


8% 1 8 Caramel/Crystal Malt - 40L info 34 40 ~


5% 1 0 Cara-Pils/Dextrine info 33 2 ~

Batch size: 10.0 gallons

Original Gravity
1.057 / 14.0° Plato (1.051 to 1.059)

Final Gravity
1.014 / 3.6° Plato (1.012 to 1.015)

Color
8° SRM / 16° EBC
(Gold to Copper)

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I love the sound of an airlock bubbling in the morning. It sounds like.....VICTORY.

Quote:
Originally Posted by TxBrew
It's now degenerating into nu uh and uh huhs and it no longer serves a point.
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Old 05-07-2012, 04:58 PM   #7
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yup... the beer should be around 8.5%, but we added some grains for our efficiency... I will check with the LHBS to see if they changed the crusher

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Kegs: Fresh Squeezed IPA, Orange Belgian,
Galactic Black IPA, Miller Clone, Coffee Stout, Yoopers Pale Ale, Two Hearted Clone


Fermenting:
20 gal Galactic Black IPA, 10 gal Ypers Pale Ale,
10 gal Belgian WitX2, 10 Gal 2 Hearted Clone,10 gal Samhain Pumpkin, 10 gal Green Flash West Coast IPA
10 gal Coffee Stout,10 Gal Raging Beeatch, 10 Gal Hop Head IPA

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Old 05-07-2012, 05:07 PM   #8
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I thought this thread was about carboys being heavy. Oh well. Good advice above.

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Old 05-07-2012, 07:40 PM   #9
tre9er
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Wait, so you agree the gravity should come out to 1.057, but you're saying in the same breath that is 20pts. lower than you expected? Then you mentioned adding grain to bump efficiency...well, how much grain?

I'm lost here.

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Old 05-08-2012, 12:45 AM   #10
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no... re read it... he said it was a 10 gal recipe, but it was a 5 gal... so it should not have come out 1.057... and we added about 3-4 lbs extra...

__________________
Kegs: Fresh Squeezed IPA, Orange Belgian,
Galactic Black IPA, Miller Clone, Coffee Stout, Yoopers Pale Ale, Two Hearted Clone


Fermenting:
20 gal Galactic Black IPA, 10 gal Ypers Pale Ale,
10 gal Belgian WitX2, 10 Gal 2 Hearted Clone,10 gal Samhain Pumpkin, 10 gal Green Flash West Coast IPA
10 gal Coffee Stout,10 Gal Raging Beeatch, 10 Gal Hop Head IPA

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