Help with hydrometer - Home Brew Forums
Home Brew Forums > Home Brewing Beer > Beginners Beer Brewing Forum > Help with hydrometer

Reply
 
Thread Tools
Old 03-23-2008, 05:19 PM   #1
eurc51
Recipes 
 
Jan 2008
Posts: 44


I'm on my 3rd brew (Belgian Dubbel) and I just added it to the primary fermentor. I decided to use the hydrometer this time and I want to make sure I'm reading it correctly.

After I added the wort to the fermentor, I took a sample, place it into the tube that comes with the hydrometer and slipped the hydrometer in. I got three readings:

Balling = 10
Potential Alcohol % = 5.5
Specific Gravity = 1.40

I know that I need to use the hydrometer to decide when to go to secondary. So, the SG readings should be higher than 1.40? When they are constant, I move to secondary correct? Do I need to take readings from the secondary to know when to bottle?

Also, do you see any issue with using dental floss to dip the hydrometer into the primary? The one potential issue I see is the yeast cake getting in the way. I guess I thought I could create a little hole. Or, maybe the yeast cake will be gone when I take the reading. It just seems easier than taking a sample and less exposure to the air.

One more thing, how accurate is the potential alcohol reading.

As always, thanks for the help.

Ersin



 
Reply With Quote
Old 03-23-2008, 05:30 PM   #2
Arneba28
 
Arneba28's Avatar
Recipes 
 
Feb 2008
Amherst, Western New York
Posts: 2,193
Liked 17 Times on 12 Posts


Ok both your reading, the balling and potential abv are ok. Your SG reading is actually 1.040. If you look farther down the hydrometer, 1.4 is not on the scale.
Since your SG is 1.040 your FG should be less then that, meaning 1.005. that just an example . you dont need to take reading to know when to bottle but when your reading stop changing, then go to secondary.
you can use dental floss, I do, just glue it to the top real good.
Potential alcohol is only good if you have absolutely no unfermentables. Also it will only work if your FG is always 1.000


__________________
My Kegerator Project

 
Reply With Quote
Old 03-25-2008, 02:53 AM   #3
eurc51
Recipes 
 
Jan 2008
Posts: 44

Thanks for the tip. And, I'm glad the dental floss idea is a good one.

 
Reply With Quote
Old 03-25-2008, 03:34 AM   #4
carls47807
Recipes 
 
Mar 2008
Fulton, NY
Posts: 32

potential alcohol can be used even if you have unfermentables, and even if you don't get to 1.000. Just take your initial reading, 1.040. Write down the potential alcohol (5.5%). When the beer is done you will have a gravity like 1.005 or something. Write down the potential alcohol there (maybe .5 percent). Your alcohol content is then 5.5 - .5 or 5 %. make sense?

 
Reply With Quote
Reply
Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
hydrometer alexcider Cider Forum 21 11-03-2011 11:44 PM
Hydrometer help Teufelhunden Beginners Beer Brewing Forum 1 11-07-2009 12:22 AM
Hydrometer Jar? Alaska_ROB Beginners Beer Brewing Forum 22 03-03-2009 11:41 PM
hydrometer Brown stone Equipment/Sanitation 2 05-03-2008 05:30 PM
Hydrometer help knipknup Bottling/Kegging 3 12-12-2006 07:38 AM


Forum Jump