Checking Gravity during Primary Fermentation - Home Brew Forums
Home Brew Forums > Home Brewing Beer > Beginners Beer Brewing Forum > Checking Gravity during Primary Fermentation

Reply
 
Thread Tools
Old 11-12-2009, 03:58 PM   #1
whodatgeauxbrew
Recipes 
 
Nov 2009
Atlanta
Posts: 29


Hello all!

I am new to this site and to homebrewing. I must say that everyone on this site is incredibly generous and helpful!

I had a question regarding checking gravity during fermentation. When using a bucket or a carboy, what is the best way to check the gravity to ensure that fermentation has completed and is ready to be bottled?

Thanks!



 
Reply With Quote
Old 11-12-2009, 04:00 PM   #2
Revvy
Post Hoc Ergo Propter Hoc
HBT_LIFETIMESUPPORTER.png
 
Revvy's Avatar
Recipes 
 
Dec 2007
"Detroitish" Michigan
Posts: 40,921
Liked 3180 Times on 1881 Posts


This is what I use, and it works with both buckets and carboys



And



Here's what I do....

1) With a spray bottle filled with starsan I spray the lid of my bucket, or the mouth of the carboy, including the bung. Then I spray my turkey baster inside and out with sanitize (or dunking it in a container of sanitizer).

2) Open fermenter.

3) Draw Sample

4) fill sample jar (usualy 2-3 turky baster draws

5)Spray bung or lid with sanitizer again

6) Close lid or bung

6) take reading

It is less than 30 seconds from the time the lid is removed until it is closed again.

Probably less if you have help.


__________________
Like my snazzy new avatar? Get Sons of Zymurgy swag, here, and brew with the best.

Revvy's one of the cool reverends. He has a Harley and a t-shirt that says on the back "If you can read this, the bitch was Raptured. - Madman

I gotta tell ya, just between us girls, that Revvy is HOT. Very tall, gorgeous grey hair and a terrific smile. He's very good looking in person, with a charismatic personality... he drives like a ****ing maniac! - YooperBrew

 
Reply With Quote
Old 11-12-2009, 04:01 PM   #3
MultumInParvo
Recipes 
 
Sep 2009
Detroit, Michigan
Posts: 802
Liked 8 Times on 8 Posts


I just take some out using a wine thief (http://www.austinhomebrew.com/produc...ducts_id=10469), and then use a hydrometer to check (http://www.austinhomebrew.com/produc...roducts_id=801). Very easy.

EDIT: Argh, beaten to it! Just look above.

 
Reply With Quote
Old 11-12-2009, 04:14 PM   #4
whodatgeauxbrew
Recipes 
 
Nov 2009
Atlanta
Posts: 29

Wow thanks a lot guys!

 
Reply With Quote
Old 11-12-2009, 11:45 PM   #5
malkore
 
malkore's Avatar
Recipes 
 
Jun 2007
Nebraska
Posts: 6,922
Liked 37 Times on 35 Posts


for a bucket i just sanitize the hydro and put it in the bucket, read it, and remove it.

for a carboy, the above methods are really your only good option.

technically a refractometer works too but that involves too much math
__________________
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

 
Reply With Quote
Old 06-24-2013, 04:17 AM   #6
psi3000
Recipes 
 
Feb 2007
Posts: 82
Liked 2 Times on 1 Posts


here is a option that i haven't done. just drop a sterile hydrometer in there and leave it.

 
Reply With Quote
Old 06-24-2013, 03:15 PM   #7
devils4ever
Recipes 
 
Sep 2007
NJ, USA
Posts: 285
Liked 8 Times on 8 Posts


Quote:
Originally Posted by psi3000 View Post
here is a option that i haven't done. just drop a sterile hydrometer in there and leave it.
Interesting idea. Anyone do this? I don't see any downside except tying up a hydrometer for a few weeks.
__________________
"Hush little brewski don't you leak, daddy wants to drink for at least a week." -- Bender of Futurama

"Actually, Dwight, you're right. Alcohol is very very bad...for children. But once you turn 21, it becomes very very good! So scram!" -- Leela

 
Reply With Quote
Old 06-24-2013, 03:28 PM   #8
unionrdr
Heavyweight homebrewing author
HBT_LIFETIMESUPPORTER.png
 
unionrdr's Avatar
Recipes 
 
Feb 2011
Sheffield, Ohio
Posts: 38,481
Liked 3617 Times on 3106 Posts


I don't think it's a good idea,as krausen & other gunk & bubbles would build up on it,& alter the reading. I have spigots on my fermenters to make life easier. Especially with hydrometer samples. I use the plastic tube it comes in for the sample. I just saw yesterday that Northern Brewer has a blue,flat grommet to fit the bottom of these tubes to make them stand up steady for like $1.69. I'm gettin one of those! I also saw they the have a refractometer with brix on the left of the reading viewer,SG on the right. Like $56.99 too. Now that's handy looking!
__________________
NEW books on amazon/Kindle! Check it out now...
Home Brewing- https://www.amazon.com/dp/B00PBAP6JO
Distopian Sci-Fi- https://www.amazon.com/dp/B00NTA0L6G
New! John Henry- https://www.amazon.com/dp/B01GBV3UXU

Revvy Likes This 
Reply With Quote
Old 06-24-2013, 05:14 PM   #9
Rockindaddy
HBT_LIFETIMESUPPORTER.png
 
Rockindaddy's Avatar
Recipes 
 
Mar 2013
Posts: 220
Liked 18 Times on 15 Posts


Do you pour the sample back in or pour it out?
__________________
"He who laughs last..........thinks slowest!"

 
Reply With Quote
Old 06-24-2013, 05:19 PM   #10
UTPhish
HBT_SUPPORTER.png
 
UTPhish's Avatar
Recipes 
 
Jan 2012
Salt Lake City, UT
Posts: 185
Liked 13 Times on 12 Posts


Quote:
Originally Posted by Rockindaddy View Post
Do you pour the sample back in or pour it out?
Don't pour it back in. I drink my samples.



 
Reply With Quote
Reply
Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
primary fermentation stopped,but gravity reads less than 1.01? beerorwine Beginners Beer Brewing Forum 3 03-08-2009 06:28 PM
Checking Gravity Deacon240 Beginners Beer Brewing Forum 25 12-10-2008 06:22 PM
Checking Original Gravity AnOldUR General Techniques 3 10-12-2008 01:56 PM
checking gravity after beer carbonated moger777 General Techniques 1 03-25-2008 01:40 PM
Gravity checking a lager SAS98M General Techniques 1 01-28-2007 02:32 PM


Forum Jump