Quantcast

OG reading

HomeBrewTalk.com - Beer, Wine, Mead, & Cider Brewing Discussion Community.

Help Support Homebrew Talk:

terry101

Member
Joined
Mar 27, 2014
Messages
24
Reaction score
0
How come I never achieve the OG reading listed with my extract kits? What am I doing wrong?


Sent from my iPad using Home Brew
 
OP
T

terry101

Member
Joined
Mar 27, 2014
Messages
24
Reaction score
0
Thanks NY Brew. I'm always concerned that my cook time is off. I tend to go a few minutes longer than directed because I don't know if cook duration is time boiling or just cooking


Sent from my iPhone using Home Brew
 

McGarnigle

Well-Known Member
Joined
Jul 14, 2008
Messages
2,012
Reaction score
95
Location
NYS
All you're doing is boiling off the water. Assuming you top off to the right amount, boil time won't matter for OG. (It will matter for hops.)

An exception would be if you boiled it down low enough that some extract stuck to the bottom of the pot.
 

schokie

Well-Known Member
Joined
Mar 15, 2010
Messages
270
Reaction score
41
That's why I don't believe any OG reading I take when doing extract. I take one anyway out of curiosity, but I don't put much faith it it if it's off from my calculated OG.

That's assuming a partial volume boil. If you did a full volume boil and didn't top off at all, then that's a totally different issue.
 
Joined
Jun 7, 2011
Messages
4,858
Reaction score
1,473
Location
The Frozen Tundra
Thanks NY Brew. I'm always concerned that my cook time is off. I tend to go a few minutes longer than directed because I don't know if cook duration is time boiling or just cooking


Sent from my iPhone using Home Brew
The clock starts when your boils starts. It's mostly for the hops. Bitterness vs. flavor can change depending on how long hops boil.

As long as you end up with the correct volume of liquid with an extract your OG should be spot on. The kit's designed that way.

Are your readings high or low?
 
OP
T

terry101

Member
Joined
Mar 27, 2014
Messages
24
Reaction score
0
Readings are always low. For instance today's pumpkin ale read 1.045 when kit said it should be 1.068


Sent from my iPhone using Home Brew
 

kh54s10

Supporting Member
HBT Supporter
Joined
Aug 6, 2011
Messages
18,714
Reaction score
5,448
Location
Edgewater
Readings are always low. For instance today's pumpkin ale read 1.045 when kit said it should be 1.068


Sent from my iPhone using Home Brew
Whose kits are you using? Are you ending up with the correct volume? You are using all the ingredients aren't you?
After topping up with water are you mixing it REALLY well before taking your gravity reading? Is the temperature of your sample near 60F?

To take a 5 gallon kit that should be 1.068 you would have to dilute to 6 gallons or more to get that low.

Being that far off with a kit is almost impossible. The biggest variance you should see is between 1.066 and 1.070 and that would mostly be the range of reading your hydrometer.

Added: check the calibration of your hydrometer. It would be 1.000 in distilled water.
 
OP
T

terry101

Member
Joined
Mar 27, 2014
Messages
24
Reaction score
0
The pumpkin kit was from my LHBS. Volumes are spot on. I calibrated a while ago. I'm guessing the mix is off


Sent from my iPhone using Home Brew
 
Top