cider gravity question - Home Brew Forums
Register Now For Free!

Home Brew Forums > Wine, Mead, Cider, Sake & Soda > Cider Forum > cider gravity question

Reply
 
Thread Tools
Old 10-25-2009, 05:40 PM   #1
bushmanj
Recipes 
 
Aug 2009
Michigan
Posts: 76


my cider has been fermenting for about 8 days. there has been a lot of constant airlock activity. i checked the gravity 4 days ago and it was 1.040 and again today and it was the same. again there has been loads of activity but no drop it gravity after 4 days. OG was 1.080

 
Reply With Quote
Old 10-25-2009, 06:08 PM   #2
david_42
 
david_42's Avatar
Recipes 
 
Oct 2005
Oak Grove, Oregon, USA
Posts: 25,597
Liked 155 Times on 145 Posts


Try shaking the sample for a minute to de-gas it.
__________________
Remember one unassailable statistic, as explained by the late, great George Carlin: "Just think of how stupid the average person is, and then realize half of them are even stupider!"

"I would like to die on Mars, just not on impact." Elon Musk

 
Reply With Quote
Old 10-25-2009, 11:04 PM   #3
bushmanj
Recipes 
 
Aug 2009
Michigan
Posts: 76

the co2 changes the gravity reading?

 
Reply With Quote
Old 10-26-2009, 12:30 AM   #4
Tusch
Recipes 
 
Nov 2007
Spring Valley, Ohio
Posts: 1,379
Liked 12 Times on 10 Posts


Well yeah, the hydrometer is based on viscosity/density so any co2 in solution will essentially artificially lift the hydrometer, leading to a higher gravity reading then the truth.
__________________
Meads: Hababero and Sarrano Capiscumel, Show Mead possibly getting split and flavored, and 12 gallons of Bochet Deliciousness
Ciders:3 Ciders with differing additives TBD, Strawberry/Apple Cider
Wine: Black Cherry Vanilla Port

 
Reply With Quote
Old 10-26-2009, 01:15 AM   #5
vespa2t
Recipes 
 
Nov 2008
Kansas City
Posts: 251
Liked 6 Times on 5 Posts


+1 on the CO2. I had a batch 'go up' in gravity after a week
Shook the thief, ton-o-bubbles later the reading was down...
__________________
-Paul O.
Vintage Vespa, Classic Mini Cooper, and Fermentation. Thats my life.

 
Reply With Quote
Reply
Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Cider vs Beer final gravity - Part II JLem Beginners Beer Brewing Forum 3 03-30-2009 09:36 PM
Cider vs Beer final gravity JLem Beginners Beer Brewing Forum 2 03-30-2009 02:01 PM
wild yeast cider and specific gravity disschord Cider Forum 3 10-29-2007 08:56 PM
high-gravity pear cider? AZWyatt Recipes/Ingredients 5 10-22-2007 11:20 PM
Maturing high gravity cider? purcell429 Cider Forum 1 12-31-2005 11:33 AM


Forum Jump