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Old 04-22-2012, 02:32 PM   #1
lhd7osc
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Default Why was my OG 1.010...

As the topic says; my OG was 1.012?

Here’s the receipt I made (an attempt at a Karl Strauss Amber Lager clone.):

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6 lbs Pale Malt (2 Row) US (2.0 SRM) Grain 60.0 %
2 lbs Munich Malt - 10L (10.0 SRM) Grain 20.0 %
1 lbs Cara-Pils/Dextrine (2.0 SRM) Grain 10.0 %
1 lbs Caramel/Crystal Malt - 60L (60.0 SRM) Grain 10.0 %
0.50 oz Cluster [7.40%] (60 min) Hops 16.6 IBU
1.00 oz Cascade [5.50%] (1 min) Hops 3.7 IBU
1 Pkgs German Lager (White Labs #WLP830) Yeast-Lager
Created a 1,000 ML Yeast Starter.

One thing that could have been wrong, my boil was a slow roller. It wasn’t as furious as I normally have it. I’d guess it was about 195F - 200F.

I did a nice whirlpool and oxygenated it for 20 minutes. Took my reading which gave me 1.010…

I pitched my yeast and there was nice activity after only a few hours. I’ve since put it in my cooler for its lagering temperature of 50F.

Thoughts ideas? Should I continue…since the highest alcohol expected would be what 1%?

Edit: Beershmith had my OG calculated at 1.060!! I was .050 off!!
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Old 04-22-2012, 02:40 PM   #2
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Did ya forget to crush your grain 0.o.

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Old 04-22-2012, 02:49 PM   #3
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We need more info on your process. What was your mash temp? How long was your mash? Did sparge and how? Any top up water added? Did you correct your hydrometer reading for temperature?

Your boil wouldn't account for that low of a number unless you ended up waaaaay over volume.

Cheers!

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Old 04-22-2012, 02:53 PM   #4
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Quote:
Originally Posted by jslay77
Did ya forget to crush your grain 0.o.
Lhbs forget to crush your grains or did they forget some completely??
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Old 04-22-2012, 02:55 PM   #5
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Check your hydrometer for cracks. A small leak can weigh it down and give you a false low reading.

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I had no problems whatsoever getting my pee to ferment.
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Old 04-22-2012, 03:56 PM   #6
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Quote:
Originally Posted by jslay77 View Post
Did ya forget to crush your grain 0.o.
Grains were crushed. And yes, I could see where that would have been an issue.

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Originally Posted by FastAndy View Post
We need more info on your process. What was your mash temp? How long was your mash? Did sparge and how? Any top up water added? Did you correct your hydrometer reading for temperature?

Your boil wouldn't account for that low of a number unless you ended up waaaaay over volume.

Cheers!
Since my grain bill was so low, i did a BIAB. Following Beersmith is suggested 7 Gals of water for 75min at a temp of 152F (strike water was at 155F before being added). I then heated it up for 10 min at 168F for my mash-out.

No top water was added. However since my boil was a bit low, I might have ended up with more water in the end than expected. Perhaps a 1 gallon over? It’s in a 7 gallon glass carboy and a bit hard to tell the exact amount (yep...I’ll be marking my carboy next round). I boiled in a Blichman 10 gallon kettle on the Top Tier system. It’s sad a newbie with all this high speed low drag gear. And I wish I were better

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Check your hydrometer for cracks. A small leak can weigh it down and give you a false low reading.
Did a float test in water and it seems spot on. 1.000. No visible sighs of cracks....

I think I’m going to go with to much water in the end.....grrrr. But wow, .050 OFF the mark. That’s just crazy...
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Old 04-22-2012, 04:29 PM   #7
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Originally Posted by lhd7osc View Post

Since my grain bill was so low, i did a BIAB. Following Beersmith is suggested 7 Gals of water for 75min at a temp of 152F (strike water was at 155F before being added). I then heated it up for 10 min at 168F for my mash-out.
Do you mean that you used seven gallons of strike water? If so, that's probably your problem. Seven gallons should be your total boil voluum. You should have used about 4 gallons for your strike water.

If you mashed in the full seven gallons, you mashed very thin and didn't get full starch conversion.
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I had no problems whatsoever getting my pee to ferment.
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Old 04-22-2012, 05:00 PM   #8
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Quote:
Originally Posted by Ravenshead

Do you mean that you used seven gallons of strike water? If so, that's probably your problem. Seven gallons should be your total boil voluum. You should have used about 4 gallons for your strike water.

If you mashed in the full seven gallons, you mashed very thin and didn't get full starch conversion.
That would be true if it were not a BIAB style, you add the whole amount of water in the beginning then bring the temp up for a mash out.

Just to be clear did you check your gravity before or after pitching? The first time I checked gravity I checked after pitching and my gravity was way off, not as low as yours but really low.
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Old 04-22-2012, 05:17 PM   #9
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You measured off the added water at the end. Measure again when everything is stirring up in the carboy. Tonight would probably be right.

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Old 04-22-2012, 06:38 PM   #10
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Quote:
Originally Posted by Transamguy77 View Post
That would be true if it were not a BIAB style, you add the whole amount of water in the beginning then bring the temp up for a mash out.

Just to be clear did you check your gravity before or after pitching? The first time I checked gravity I checked after pitching and my gravity was way off, not as low as yours but really low.
I've only done BIAB once but I didn't mash with my full boil volume. I used the same amount of water I always use for the mash and then sparged through the bag. I basically followed deathbrewers process with a few modification to fit my equipment.

http://www.homebrewtalk.com/f39/easy...ng-pics-90132/

I'll defer to those who have more experience with BIAB, but I'm still thinking that if the OP actually mashed in seven gallons of water he's going to have conversion issues. That volume dilutes the enzymes too much to get good conversion.

From Palmer:

"A thinner mash of >2 quarts of water per pound of grain dilutes the relative concentration of the enzymes, slowing the conversion, but ultimately leads to a more fermentable mash because the enzymes are not inhibited by a high concentration of sugars."
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I had no problems whatsoever getting my pee to ferment.
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