New Giveaway - Wort Monster Conical Fermeneter!

Home Brew Forums > Home Brewing Beer > Extract Brewing > low OG trends




Reply
 
LinkBack Thread Tools Display Modes
Old 09-21-2007, 03:36 PM   #1
sgbender
Feedback Score: 0 reviews
 
sgbender's Avatar
Recipes 
 
Join Date: Dec 2006
Location: Perry, MI
Posts: 22
Default low OG trends

need help please!

i can not seem to hit suggested OG's on most of my brewing attempts

just did a belgain ale, suggested OG 1.062-1.067, measured 1.046

previous brew, a nut brown ale suggested 1.045-1.050 measured 1.038

belgain was brewed with store bought drinking water, nut brown with tap water

i have hit a couple of suggested OG's but only a couple out of 8 attempts

thanks for your time

steve



__________________
sgbender is offline
 
Reply With Quote Quick reply to this message
Old 09-21-2007, 03:41 PM   #2
ColoradoXJ13
Feedback Score: 0 reviews
 
ColoradoXJ13's Avatar
Recipes 
 
Join Date: Dec 2006
Location: Somerville, MA
Posts: 1,271
Liked 13 Times on 6 Posts

Default

we're going to need more detail than that buddy...



__________________
ColoradoXJ13 is offline
 
Reply With Quote Quick reply to this message
Old 09-21-2007, 04:38 PM   #3
malkore
Feedback Score: 0 reviews
 
malkore's Avatar
Recipes 
 
Join Date: Jun 2007
Location: Nebraska
Posts: 6,922
Liked 32 Times on 30 Posts
Likes Given: 9

Default

its hard to miss OG on an extract kit unless you added way too much water. like its a 3gal recipe and you used 5gal.

but we'll assume you didn't do that repeated times.

What temperature are you taking readings at? 60F is what 95% of hydrometers are calibrated to, and if you're trying to take a reading at 160F...forget about it. it gets way too skewed by high temps.

another VERY likely possibility: are you doing full boils, or smaller boils and then topping off the water in the fermenter? I ask because its REALLY common for the fermenter to not be very well mixed, even if you stir the crap out of it...that thick wort just doesn't easily meld with pure water. the bottom of the bucket might be 1.080 cuz the wort has settled, while the top where your hydro reading gets taken is 1.040.
it stratefies in the fermenter...if you use a glass carboy you might even see how much lighter the top half is than the bottom.

I had low OG's in my extracts too, but tasting and drinking the final beer, you could tell it had the correct ABV and not a full 1.4% lower than my OG/FG calculations yielded. So I had to assume I did hit my OG, and did have the 4.4% alcohol since the beer tasted 'right' and had the appropriate buzz after a couple pints.

*edit*
forgot to mention that old LME cans can have sugar 'degradation' that can screw up OG and fermentable sugar levels.

__________________
Malkore
Primary: English Mild
On tap: Pale Ale, Lancelot's Wheat, English Brown Ale, Steam Beer, HoovNuts IPA
Bottled: MOAM, Braggot, Raspberry Melomel, Merlot, Apfelwein, Pyment, Sweet mead, Cabernet
Gal in 2009: 27, Gal in 2010: 34, Gal in 2011: 13, Gal in 2012: 10

Last edited by malkore; 09-21-2007 at 04:44 PM.
malkore is offline
 
Reply With Quote Quick reply to this message
Old 09-21-2007, 05:04 PM   #4
Got Trub?
Feedback Score: 0 reviews
Recipes 
 
Join Date: Apr 2007
Location: Washington State
Posts: 1,538
Liked 7 Times on 5 Posts

Default

Its hard to be that far off with extract kits. I'd recommend you:

1) Calibrate you hydrometer - it should read 1.000 in water

2) Only measure your wort when it is cooled to below about 80 degrees F and then use the correction factor here: http://hbd.org/cgi-bin/recipator/recipator/hydrometer.html.

__________________
Got Trub? is offline
 
Reply With Quote Quick reply to this message
Old 09-21-2007, 07:07 PM   #5
TheJadedDog
AFK ATM
Feedback Score: 0 reviews
 
TheJadedDog's Avatar
Recipes 
 
Join Date: Aug 2006
Location: People's Republic of Cambridge
Posts: 3,323
Liked 6 Times on 6 Posts

Default

I'm gonna guess you are not mixing properly in the fermenter prior to taking a reading.

__________________
And now we go AG!

On Tap: Nadda
Primary: Nadda
Planning: Extra Special Bitter
TheJadedDog is offline
 
Reply With Quote Quick reply to this message
Old 09-21-2007, 07:08 PM   #6
uniconfis
Feedback Score: 0 reviews
Recipes 
 
Join Date: Aug 2007
Location: Minneapolis, MN
Posts: 140
Default

You need to ensure that your wort and water are throughly mixed before taking a gravity test. Like others said, you really can't miss your OG when brewing extract kits. Especially 6 out of 8. Make sure you know the 5 gal mark on your primary so you don't add too much or too less water than what is required.

Welcome to HBT

__________________
Primary: N/A
Secondary 1: Porter (Forgot clone name)
Secondary 2: IIPA (Pliny the Elder w/ diff hops)
Kegged: Imperial Brown (Brewed by Surly through AHA rally)
Next: Hopslam clone (hopefully)
uniconfis is offline
 
Reply With Quote Quick reply to this message
Old 09-21-2007, 08:30 PM   #7
HBDrinker008
Feedback Score: 0 reviews
Recipes 
 
Join Date: Aug 2007
Posts: 125
Default

I never hit my target gravities either when using extract kits. I just chalk it up to the fact that im doing partial boils and topping off and not getting a good mix. I drink most of the beers myself so its not too important for me to know the exact ABV. The beers tastes fine so I stopped worrying about it.

Big Lake Brewfest is this Saturday in Superior WI. Over 30 craft breweries will be there can't wait.

__________________
HBDrinker008 is offline
 
Reply With Quote Quick reply to this message
Old 09-21-2007, 09:19 PM   #8
sgbender
Feedback Score: 0 reviews
 
sgbender's Avatar
Recipes 
 
Join Date: Dec 2006
Location: Perry, MI
Posts: 22
Default

thanks for the input

i like the idea of the wort not being mix well enough, scince i have hit gravities on a couple of beers

i know i did not give great detail in what i was doing, just not good at that

thanks again
steve



__________________
sgbender is offline
 
Reply With Quote Quick reply to this message
Reply


Quick Reply
Message:
Options
Thread Tools
Display Modes


Similar Threads
Thread Thread Starter Forum Replies Last Post
Beer Related Google Trends Brewsmith General Beer Discussion 1 03-30-2008 06:43 AM
Going with the trends... Craigslist Score! TheFlyingBeer Equipment/Sanitation 7 07-19-2007 01:58 PM