Can I do this to check F.G.? - Home Brew Forums
Home Brew Forums > Home Brewing Beer > Fermentation & Yeast > Can I do this to check F.G.?

Reply
 
Thread Tools
Old 07-23-2012, 04:07 PM   #1
Leut
Recipes 
 
May 2012
Morgan City, Louisiana
Posts: 6


Started my 1st all grain recipe 23 days ago. Hefeweizen kit from Midwest Supplies. O.G. was 1.050, so now 23 days later about to check F.G. . When i draw sample and haven't hit target F.G. is it OK to just draw large sample put it in a sanitized bottle with aluminum foil tightly on top and just check each day with that sample? Or do i need to just keep opening carboy and draw sample each day? Was just worried about any baddies getting in from continually opening carboy.



 
Reply With Quote
Old 07-23-2012, 04:18 PM   #2
stjackson
Recipes 
 
Aug 2010
Columbus, GA
Posts: 145
Liked 19 Times on 12 Posts


Well, if it's been fermenting for 23 days and still hasn't made it, then it's probably not going to. As for your question on using the same sample and checking it daily, it would probably be fairly accurate, assuming it was at the same temp as the main fermentation. It could ferment at a different rate, though depending on the amount of yeast you drew with it.

But, like I said before, if you've gone 23 days since pitching, it's probably done.



 
Reply With Quote
Old 07-23-2012, 04:31 PM   #3
jCOSbrew
Recipes 
 
Feb 2012
Colorado Springs, CO
Posts: 624
Liked 38 Times on 34 Posts


A hefe in Particular should be ready to bottle in a couple weeks.

 
Reply With Quote
Old 07-23-2012, 04:52 PM   #4
Leut
Recipes 
 
May 2012
Morgan City, Louisiana
Posts: 6

Oh ok cool guys. just wanted to be sure, trying to get some of basics down of all grain brewing. Thanks for responses!

 
Reply With Quote
Old 07-24-2012, 09:15 AM   #5
Peppers16
Recipes 
 
May 2012
Nottingham, (UK)
Posts: 205
Liked 7 Times on 6 Posts


I tried this with my sample tube. It's actually quite good having a mini-fermentation to monitor but I'm convinced that it ferments at a different rate to bulk, even at the same temperature. I'm pretty sure you can use it to check F.G. and I'm not entirely sure why more people don't do this sort of thing.

 
Reply With Quote
Old 07-24-2012, 09:39 AM   #6
cfonnes
Recipes 
 
Jun 2010
Utah
Posts: 929
Liked 64 Times on 49 Posts


Quote:
Originally Posted by Peppers16 View Post
II'm convinced that it ferments at a different rate to bulk, even at the same temperature. I'm pretty sure you can use it to check F.G. and I'm not entirely sure why more people don't do this sort of thing.
This ^^^

The smaller amount will ferment quicker.

In order to naturally carbonate some brewers will pull a small amount of wort and monitor its gravity. When it has reached FG you can use that number to determine when to seal off the main fermenter in order to capture the CO2.

 
Reply With Quote
Old 07-24-2012, 11:55 AM   #7
helgibelgi
Recipes 
 
Mar 2011
Reykjavik, Iceland
Posts: 51
Liked 2 Times on 2 Posts


What was the FG reading?

 
Reply With Quote
Old 07-26-2012, 12:01 AM   #8
Leut
Recipes 
 
May 2012
Morgan City, Louisiana
Posts: 6

FG was 1.006. Not sure why because instructions say should been 1.010-1.012. I tasted it, doesn't taste bad..so I'm kegging it anyway :P

 
Reply With Quote
Old 07-26-2012, 02:47 PM   #9
stjackson
Recipes 
 
Aug 2010
Columbus, GA
Posts: 145
Liked 19 Times on 12 Posts


If you got to 1.006, you're definitely done. Package that bad boy up and drink it.



 
Reply With Quote
Reply
Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Check my pic, please...what should I do? CanadianQuaffer Fermentation & Yeast 15 01-30-2014 03:27 AM
Check the gravity. FV with no tap. TechnosaurusRex Fermentation & Yeast 9 02-20-2011 09:16 AM
Check Me On My Directions dgoldb1 Fermentation & Yeast 15 11-18-2010 11:24 AM
check gravity? HItransplant Fermentation & Yeast 18 10-13-2010 08:23 PM
Check this out!!! tippetsnapper Fermentation & Yeast 3 09-13-2010 02:33 PM


Forum Jump