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

Home Brew Forums > Home Brewing Beer > All Grain & Partial Mash Brewing > Embarassing gravity question

Thread Tools
Old 08-27-2012, 02:27 PM   #1
jsmcclure's Avatar
Oct 2011
Edina, MN
Posts: 143
Liked 11 Times on 10 Posts

OK, not my smoothest brewing weekend. I made a pumpkin ale. Everything went well up to the end of the boil. My refractometer suggested a gravity of 1.060. Then I got called in to work just as I started my immersion cooler.

The cooler ran for about 45 minutes while I took care of stuff at work. By the time I got home I was behind schedule cooking for my mother-in-law's birthday. Anyway, I quickly drained the beer into my carboy. Then I grabbed the last of the pot for my gravity reading. I rolled my carboy around to oxygenate pitched the yeast and ran to cook.

When I got around to checking, the gravity reading from the "bottom of the pot" was 1.018. I took a little of the beer from the carboy and the gravity reading was 1.060. Which is closer?

I'm shocked that there would be that much difference between the "top and the bottom". I can believe that particulates settle out but this seems like a huge difference in density over relatively short time periods. Any ideas out there? I'm going to let it ferment away and hope for the best but I've never seen this before.

Reply With Quote
Old 08-27-2012, 02:38 PM   #2
Jul 2010
south of hardwick
Posts: 425
Liked 7 Times on 6 Posts

Sounds like some mistake or abberation. There is no way you could actually get a dicrepancy like this in a situation where the wort had stratified by density. If you are really worried, shake up the carboy, take a sample, and satisfy your mind. Otherwise, don't worry.

Reply With Quote
Old 08-27-2012, 03:32 PM   #3
TopherM's Avatar
Mar 2011
St. Petersburg, FL
Posts: 3,974
Liked 450 Times on 355 Posts

Gravity is a measure of liquid density relative to water. To have a proper reading, you need to stir/shake the everliving crap out of your wort to make the density uniform throughout the entire solution. Oxygen is necessary for good yeast health, so shake away on every batch (only pre fermentation!!), get a turkey baster or wine thief to get a good sample from under the froth, and you'll always have reliable OG readings.
Primary #1 - Midnight Ryeder (Midnight Wheat and Rye)
Primary #2 - Florida Weiss
Primary #3 - Kane-DOH APA (Honey Citra APA)
Secondary #1 - Downtown Flanders Brown (brewed August 2012)
Keg #1 - Raspberry Florida Weiss
Keg #2 - Cinnamon Raisin Cider
Keg #3 - NONE!
Bottled - NONE!

Reply With Quote
Thread Tools

Similar Threads
Thread Thread Starter Forum Replies Last Post
Question about gravity JLubbert All Grain & Partial Mash Brewing 3 11-14-2011 01:17 AM
Gravity question Icon578 All Grain & Partial Mash Brewing 4 10-26-2011 11:48 PM
Gravity Question BrewerJoe All Grain & Partial Mash Brewing 7 01-30-2011 05:27 PM
Gravity Question mfp03001 All Grain & Partial Mash Brewing 7 05-01-2010 07:33 PM
Gravity question brucepepper All Grain & Partial Mash Brewing 5 11-17-2007 09:36 PM

Forum Jump