Get your HBT Growlers, Shirts and Membership before the Rush!


Home Brew Forums > Home Brewing Beer > Extract Brewing > Way off gravity reading
Reply
 
LinkBack Thread Tools
Old 12-04-2007, 02:39 PM   #1
smizak
Feedback Score: 0 reviews
Recipes 
 
Join Date: Dec 2007
Location: Buffalo, NY
Posts: 1,748
Liked 74 Times on 55 Posts
Likes Given: 52

Default Way off gravity reading

Hello guys, I'm new to the hobby and brewed my first batch last night. If you guys could help me out with my gravity calculations, that would be great. Here is the list of my fermentables.

2 lb two row malt
1 lb crystal 50-60L
All three pounds partial-mash technique, 150 F for 1 hr.

6 lbs Muntons extra light DME

Five gallon batch

Even with a conservative estimate for the extraction of my mash, I calculate the gravity @ 1.055 at least. HOWEVER, my measured gravity was 1.040. Even with just the extract I should get 1.048. Any ideas on what happened? Is Muntons Extra Light less sugary than other extracts? Is my hydrometer lying? Thanks for the help in advance, I'll hang up and listen.

__________________
smizak is online now
 
Reply With Quote Quick reply to this message
Old 12-04-2007, 02:45 PM   #2
Yooper
Ale's What Cures You!
HBT_ADMIN.png
Feedback Score: 0 reviews
 
Yooper's Avatar
Recipes 
 
Join Date: Jun 2006
Location: Upper Michigan
Posts: 62,886
Liked 4947 Times on 3584 Posts
Likes Given: 1000

Default

Generally, if your sg is low, it's because you did a partial boil and topped up with water. Even if you stir, stir, stir, the extract you boiled is heavier and sinks to the bottom, so your sample is usually the "lighter" wort on top. It doesn't matter, since the yeast can find the sugars wherever they are.

It's impossible to "lose" sugars, so unless you added way too much water to your wort (say 5.75 gallons instead of 5), your og should be at least 1.048. It is possible that your pm didn't convert well, but you probably got some additional fermentables from the 2-row, probably around .010 pounds, for an og of 1.058 or so.

Also, don't forget the temperature correction, if you took the sg at a different temperature than 60 degrees.

__________________
Broken Leg Brewery
Giving beer a leg to stand on since 2006

Find me on facebook: Lorena Evans
But I'm pretty boring so don't expect much!
https://www.facebook.com/lorena.t.evans
Yooper is offline
 
Reply With Quote Quick reply to this message
Old 12-04-2007, 02:54 PM   #3
smizak
Feedback Score: 0 reviews
Recipes 
 
Join Date: Dec 2007
Location: Buffalo, NY
Posts: 1,748
Liked 74 Times on 55 Posts
Likes Given: 52

Default

Thanks for the quick reply.
I think you are exactly right. The bottom of the fermenter was WAY darker that my sample, I just assumed it was break material. I've never heard of the extract boil seperating from the top off water so I was hesitant to conclude that was the case. I'll just shake it up more next time I do an initial hydro reading.

Live and learn.

Just like I learned last night not to jam a rubber stopper in your carboy to hard because it might push through and end up in your beer.

It was sanitized, but I'm super nervous that a stopper floating around in my beer will spoil it.

__________________
smizak is online now
 
Reply With Quote Quick reply to this message
Old 12-04-2007, 03:01 PM   #4
cheezydemon
Feedback Score: 0 reviews
Recipes 
 
Join Date: Jun 2007
Location: The "Ville"
Posts: 1,921
Liked 3 Times on 3 Posts

Default

I'm sure it will be OK. I don't take an OG reading anymore. I figure that I am not going to add sugar or anything to change it so why bother? I use the FG to determine when it is done.

__________________
BOTTLED: "Route 66 IPA" 7% ABV, "Dave's Imperial Stout" 12% ABV , "Spider Imperial Stout" 9%ABV , "Mutt Irish Ale" 7% ABV, "Sorta Sierra" IPA's 4.4% ABV, "Habanero Ales" 5.5% ABV, "Pumpkin Seed Ale" 5.5% ABV , "Marzen" Lager, "Step child Ale",
PRIMARies: "Caramel Amber" , "Black Porter"
SECONDARIES:1 :"Miller Ale"
On DECK: Another Russian Stout
cheezydemon is offline
 
Reply With Quote Quick reply to this message
Old 12-04-2007, 03:15 PM   #5
Yooper
Ale's What Cures You!
HBT_ADMIN.png
Feedback Score: 0 reviews
 
Yooper's Avatar
Recipes 
 
Join Date: Jun 2006
Location: Upper Michigan
Posts: 62,886
Liked 4947 Times on 3584 Posts
Likes Given: 1000

Default

Quote:
Originally Posted by smizak
Thanks for the quick reply.
I think you are exactly right. The bottom of the fermenter was WAY darker that my sample, I just assumed it was break material. I've never heard of the extract boil seperating from the top off water so I was hesitant to conclude that was the case. I'll just shake it up more next time I do an initial hydro reading.

Live and learn.

Just like I learned last night not to jam a rubber stopper in your carboy to hard because it might push through and end up in your beer.

It was sanitized, but I'm super nervous that a stopper floating around in my beer will spoil it.
It won't spoil it! Trust me, I know!
__________________
Broken Leg Brewery
Giving beer a leg to stand on since 2006

Find me on facebook: Lorena Evans
But I'm pretty boring so don't expect much!
https://www.facebook.com/lorena.t.evans
Yooper is offline
 
Reply With Quote Quick reply to this message
Old 12-04-2007, 03:17 PM   #6
BuffaloSabresBrewer
Feedback Score: 0 reviews
 
BuffaloSabresBrewer's Avatar
Recipes 
 
Join Date: Sep 2007
Posts: 2,224
Liked 6 Times on 4 Posts

Default

Ive done it too.

__________________
Quote:
DeathBrewer:
maybe i'll post an ad:

Single male seeks double-jointed supermodel who owns a brewery and grows her own pot. Access to free concert tickets a plus!
BuffaloSabresBrewer is offline
 
Reply With Quote Quick reply to this message
Old 12-04-2007, 03:28 PM   #7
smizak
Feedback Score: 0 reviews
Recipes 
 
Join Date: Dec 2007
Location: Buffalo, NY
Posts: 1,748
Liked 74 Times on 55 Posts
Likes Given: 52

Default

Haha, awesome. Any advice on how to get it out when the beer is done? Or should I just leave it as some kind of fermenter mascot?

P.S. Go Sabres!!!

__________________
smizak is online now
 
Reply With Quote Quick reply to this message
Old 12-04-2007, 03:38 PM   #8
Yooper
Ale's What Cures You!
HBT_ADMIN.png
Feedback Score: 0 reviews
 
Yooper's Avatar
Recipes 
 
Join Date: Jun 2006
Location: Upper Michigan
Posts: 62,886
Liked 4947 Times on 3584 Posts
Likes Given: 1000

Default

After you rack the beer out, it'll be a bugger to get that bung out! A straightened coat hanger might work. There is a cool video on how to get a cork out of a bottle, and that technique might also work for you. Also, don't rule out needle nose pliers!

Here's the video:

__________________
Broken Leg Brewery
Giving beer a leg to stand on since 2006

Find me on facebook: Lorena Evans
But I'm pretty boring so don't expect much!
https://www.facebook.com/lorena.t.evans
Yooper is offline
 
Reply With Quote Quick reply to this message
Old 12-04-2007, 03:49 PM   #9
HopHeadWeb
Feedback Score: 0 reviews
Recipes 
 
Join Date: Dec 2007
Location: Indiana
Posts: 14
Default

Quote:
Originally Posted by smizak
\
Just like I learned last night not to jam a rubber stopper in your carboy to hard because it might push through and end up in your beer.

Lol. I have done this before too. The time I did it I was pulling the Bung out by grabbing onto the airlock. The airlock pulled out of the top of the bung and the seperation of the two somehow created a vacumm and sucked the bung into mah brew!

I was ready to bottle so I went ahead and racked it. Was a bear trying to get that bung out though. I think I ended up using a coat hanger. I went to the store and bought a larger size bung so I wouldn't have to deal with that again.

Have fun getting yours out! Lol!
__________________
HopHeadWeb is offline
 
Reply With Quote Quick reply to this message
Old 12-04-2007, 04:49 PM   #10
smizak
Feedback Score: 0 reviews
Recipes 
 
Join Date: Dec 2007
Location: Buffalo, NY
Posts: 1,748
Liked 74 Times on 55 Posts
Likes Given: 52

Default

Quote:
Originally Posted by YooperBrew
After you rack the beer out, it'll be a bugger to get that bung out! A straightened coat hanger might work. There is a cool video on how to get a cork out of a bottle, and that technique might also work for you. Also, don't rule out needle nose pliers!

Here's the video: http://www.metacafe.com/watch/455316..._bottle_trick/

That was super cool! I might actually try that first before fishing around with a coat hanger.

Thanks for the help and replies guys. Go figure, a message board that is actually helpful!!
__________________
smizak is online now
 
Reply With Quote Quick reply to this message
Reply



Quick Reply
Message:
Options
Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Gravity reading Kass_Brauhaus General Techniques 12 06-02-2009 11:59 PM
Gravity Reading AboutTheStout Beginners Beer Brewing Forum 4 04-03-2009 03:50 AM
Low gravity reading. Wattuz Beginners Beer Brewing Forum 13 02-03-2008 08:51 PM
Gravity reading... Bulls Beers Beginners Beer Brewing Forum 6 09-17-2007 02:24 PM
Gravity reading KIDD All Grain & Partial Mash Brewing 8 07-20-2007 04:04 PM



Newest Threads

LATEST SPONSOR DEALS