Home Brew Forums > Home Brewing Beer > General Techniques > Boil over
Reply
 
Thread Tools
Old 10-25-2012, 08:28 PM   #1
steveh11
Feedback Score: 0 reviews
Recipes 
 
Join Date: Oct 2012
Posts: 3
Default Boil over

Boil over and lost over 1/2 batch. Thought I would just adjust accordingly for amount of water to add to get to normal yeast pitching temp, but OG was over 1.1 and supposed to be about 1.064! Wondering if I need to still add more water & if so how to determine how much is needed?


steveh11 is offline
 
Reply With Quote
Old 10-26-2012, 06:16 PM   #2
TopherM
BJCP ID: F0838
HBT_SUPPORTER.png
Feedback Score: 1 reviews
 
TopherM's Avatar
Recipes 
 
Join Date: Mar 2011
Location: St. Petersburg, FL
Posts: 3,932
Liked 436 Times on 345 Posts
Likes Given: 23

Default

Something in your numbers is not right.

Gravity is a measure of density, so if you lost 1/2 your wort to boilover, that wouldn't change the gravity of the leftover wort at all, you'd just have less of it. Then, adding additional water to the wort would make the gravity GO DOWN from the expected 1.064 OG, not UP to 1.1. You've measured something incorrectly.

You certainly don't need more water. If anything, you should need less, and your TRUE OG should be somewhere below 1.064 at this point.


__________________
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!
TopherM is offline
 
Reply With Quote
Old 10-26-2012, 06:32 PM   #3
tre9er
Feedback Score: 0 reviews
Recipes 
 
Join Date: Jan 2012
Location: Lincoln, NE
Posts: 4,372
Liked 236 Times on 197 Posts
Likes Given: 35

Default

also, use 2 drops of fermcap-s in the future. no more boilovers.
__________________
_________________________________
Skal!
Den Faaborg Bryggeri

Quote:
Originally Posted by davekippen View Post
Open log Fermenting and gas-can secondary?? I am planning my next brew right now!!
tre9er is offline
 
Reply With Quote
Old 10-26-2012, 07:28 PM   #4
Wynne-R
Feedback Score: 0 reviews
Recipes 
 
Join Date: Aug 2009
Location: Texas
Posts: 938
Liked 107 Times on 69 Posts
Likes Given: 91

Default

Iím with the OP on this, except itís not from boil over, itís from boil off. A boil over is mostly foam, not that much liquid. Once the hotbreak is done, it wonít boil over any more, it just evaporates.

I would advise to mix it back down to your expected gravity. Otherwise itís going to be a half batch of high gravity wort. Not that thereís anything wrong with that, but itís not what you set out to make. Big beers can cause problems like stuck fermentations and hard to carbonate.
Wynne-R is offline
 
Reply With Quote
Old 10-26-2012, 07:45 PM   #5
TopherM
BJCP ID: F0838
HBT_SUPPORTER.png
Feedback Score: 1 reviews
 
TopherM's Avatar
Recipes 
 
Join Date: Mar 2011
Location: St. Petersburg, FL
Posts: 3,932
Liked 436 Times on 345 Posts
Likes Given: 23

Default

Wayne,

I'd agree with you if we were talking a few seconds of boilover here, but the OP is stating he lost HALF his volume to boilover. An event that takes 1/2 of your wort volume IS NOT evaporating water, it's pretty much all wort. I've had short boilovers before, and it might be foam, but it's sweet wort foam. You know when you clean it up.

The OP might be describing what happened incorrectly, but you don't lose 1/2 your volume to boil off, and your OG doesn't go up after a boilover, like all that dumped on the deck was water. Doesn't happen.

Your OG DEFINITELY doesn't go up from 1.064 to 1.1 after a boilover OR boil off AFTER you replace the lost boilover volume with water. The numbers don't make sense given the scenerio.
__________________
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!
TopherM is offline
 
Reply With Quote
Old 10-26-2012, 08:58 PM   #6
Wynne-R
Feedback Score: 0 reviews
Recipes 
 
Join Date: Aug 2009
Location: Texas
Posts: 938
Liked 107 Times on 69 Posts
Likes Given: 91

Default

The gravity doesnít go up when you add water. Really? Thanks for pointing that out.

It does go up when you boil off water. That was kind of my point.

Iím guessing the OP wasnít around when this happened or he would have stopped it. So he really doesnít know what happened. There were losses in volume due to a combination of boilover and boiloff, as evidenced by the gravity increase. It didnít double, but it went up 50%.

Itís possible he totally screwed up the gravity reading, but Iím skeptical. How do you screw up a gravity reading ?
Wynne-R is offline
 
Reply With Quote
Old 10-26-2012, 09:04 PM   #7
tre9er
Feedback Score: 0 reviews
Recipes 
 
Join Date: Jan 2012
Location: Lincoln, NE
Posts: 4,372
Liked 236 Times on 197 Posts
Likes Given: 35

Default

Quote:
Originally Posted by Wynne-R View Post
How do you screw up a gravity reading ?
Obviously you haven't read the Beginners forum enough...
__________________
_________________________________
Skal!
Den Faaborg Bryggeri

Quote:
Originally Posted by davekippen View Post
Open log Fermenting and gas-can secondary?? I am planning my next brew right now!!
tre9er is offline
duboman Likes This 
Reply With Quote
Old 10-26-2012, 09:09 PM   #8
Wynne-R
Feedback Score: 0 reviews
Recipes 
 
Join Date: Aug 2009
Location: Texas
Posts: 938
Liked 107 Times on 69 Posts
Likes Given: 91

Default

Funny
Wynne-R is offline
 
Reply With Quote
Old 10-26-2012, 09:14 PM   #9
duboman
Feedback Score: 0 reviews
Recipes 
 
Join Date: Jul 2011
Location: Glenview, IL
Posts: 6,364
Liked 505 Times on 467 Posts
Likes Given: 226

Default

I think we all need a lot more information like full boil, partial boil blah blah blah..... If the OP boiled off 1/2 his volume it must have been one hell of a raging boil and he fell asleep. If it was due to boil over then the pot must have been filled to the rim as a full boil and again was sleeping. Assuming one or the other I will question the gravity readings as well

OP-if you haven't already taken matters into your own hands, fill in the blanks and we'll try to help out. In the end you will have made beer but what it winds up being is anybody's guess right now.
__________________
Nothing Left to do but smile and drink beer.....

The Commune Brewing Company-Perfecting the "art" of beer since 2010
duboman is offline
 
Reply With Quote
Old 02-13-2013, 08:04 PM   #10
steveh11
Feedback Score: 0 reviews
Recipes 
 
Join Date: Oct 2012
Posts: 3
Default

All,

Thanks for your inputs. The brew turned out fine and tastes just like other batches I've made. Only problem is I don't have as much as I would like!


steveh11 is offline
 
Reply With Quote
Reply


Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Making my own Boil kettle: Formula for pre-boil vs post boil anyone? brewjedi General Beer Discussion 7 10-03-2014 06:23 PM
First full boil - questions regarding strength of boil, hop utilization, hot break heyjaffy Beginners Beer Brewing Forum 3 04-14-2011 01:56 AM
What adjustment should I make to hops for full boil vs. partial boil? DaveAllen Beginners Beer Brewing Forum 18 03-15-2010 02:46 AM
Calculating wort expansion along with pre and post boil boil volumes greggor General Techniques 4 10-23-2009 12:01 PM
Question about water amount in full boil or partial boil neldred Beginners Beer Brewing Forum 6 10-17-2009 03:50 AM


Forum Jump

Newest Threads

LATEST SPONSOR DEALS