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Old 07-03-2013, 09:57 PM   #1
phillipsrx
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Default Extract Overattenuation

Tried to search this topic with no luck. I have brewed several extract recipes lately that keep coming out about 7-9 points below my calculated FG. I have been hitting the OG spot on. The latest was a blue moon summer honey wheat clone with OG 1.061 & FG 1.017 but it came out at 1.010 (calc ABV 5.73 but actual 6.8%). This was using S-05 yeast at 68 degrees the entire time. Am I being too efficient when steeping my grains? I wouldn't think the steeping grains would change the gravity that much. I steeped at 155 for 30 min. Do I need to change my temp for steeping? Also, it seems I may have read about wild yeast leading to overattenuation.

Here's the recipe:

3 lb Liquid Malt Extract - Extra Light
3 lb Liquid Malt Extract - Wheat
1.5 lb Honey
7.5 lb Total

Steeping Grains
1 lb American - White Wheat (had to use torrified)
1 lb American - Pale 2-Row
0.5 lb Flaked Oats
0.5 lb Canadian - Honey Malt

Thanks for the input.

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Old 07-03-2013, 11:37 PM   #2
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With that much honey you're guaranteed a low finishing gravity. 1.017 seems too high for a beer with a pound and a half of honey.

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Old 07-04-2013, 12:26 AM   #3
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Exactly. Your 1.010 is a good Fg. Your calculations to get the FG are what's flawed, not the actual FG.

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Old 07-05-2013, 01:21 AM   #4
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I've been using Brewer's Friend for my calculations. I have seen a lot of people mention Beer Smith. Should I upgrade to Beer Smith or is there a better route?

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Old 07-05-2013, 01:25 AM   #5
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Quote:
Originally Posted by phillipsrx View Post
I've been using Brewer's Friend for my calculations. I have seen a lot of people mention Beer Smith. Should I upgrade to Beer Smith or is there a better route?
No, I've never found a decent software/calculator to come up with a good FG. It really depends on the ingredients, yeast strain, etc, so you sort of have to figure that one out by yourself. 1.017 is ridiculously high for such a beer, and you'll learn that once you've been brewing for a while.
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