Electric Brewing Supply 30A BCS Giveaway!


Home Brew Forums > Home Brewing Beer > General Beer Discussion > Help on avoiding boil overs with 7.5 gallon kettle
Reply
 
LinkBack Thread Tools
Old 11-09-2010, 12:36 AM   #1
chaselun
Feedback Score: 0 reviews
Recipes 
 
Join Date: Oct 2010
Location: minnesota
Posts: 20
Liked 1 Times on 1 Posts

Default Help on avoiding boil overs with 7.5 gallon kettle

Hi guys,

Going to start my first AG batch soon with my 7.5 gallon kettle. This is going to be calling it very close and I want to avoid boil overs. Any tips?

Thanks!

__________________
chaselun is offline
 
Reply With Quote Quick reply to this message
Old 11-09-2010, 12:45 AM   #2
Countryham
Feedback Score: 0 reviews
Recipes 
 
Join Date: Sep 2010
Location: Murfreesboro, TN, Tennessee
Posts: 38
Default

Until the hot break is over, stay close by with a stir spoon. If it starts foaming up too much, lower the gas for a second and whirlpool the wort. As soon as it goes down, you can kick the gas back up. It will only do that a few times before the hot break is done with. Just keep an eye out when you do later hop additions. I've seen it foam up then as well.

__________________
Countryham is offline
 
Reply With Quote Quick reply to this message
Old 11-09-2010, 12:51 AM   #3
ErieShores
Feedback Score: 0 reviews
Recipes 
 
Join Date: Nov 2009
Location: Buffalo, NY USA
Posts: 488
Liked 21 Times on 17 Posts
Likes Given: 138

Default

Fermcap-Google it or search it here.

__________________
ErieShores is offline
 
Reply With Quote Quick reply to this message
Old 11-09-2010, 12:53 AM   #4
Yooper
Ale's What Cures You!
HBT_ADMIN.png
Feedback Score: 0 reviews
 
Yooper's Avatar
Recipes 
 
Join Date: Jun 2006
Location: Upper Michigan
Posts: 61,667
Liked 4635 Times on 3366 Posts
Likes Given: 909

Default

Quote:
Originally Posted by ErieShores View Post
Fermcap-Google it.
Yep. I'm a new Fermcap user, and now I'm kicking myself for not using it years ago! I used to brew on the stove top- 6.25 gallons in a 30 quart pot. I had a boilover or two, but it worked ok. And just recently (three batches) I've been using Fermcap. It's great! If you use the Fermcap, you don't get much foam at all, and even a hard boil stays under control. No worries about a boil over, and you can start with 6.5 gallons or so.
__________________
Broken Leg Brewery
Giving beer a leg to stand on since 2006
Yooper is offline
ErieShores Likes This 
Reply With Quote Quick reply to this message
Old 11-09-2010, 11:21 AM   #5
dzlater
Feedback Score: 0 reviews
Recipes 
 
Join Date: Apr 2008
Location: New Jersey
Posts: 1,048
Liked 27 Times on 26 Posts
Likes Given: 118

Default

The foam control works great. Before I discovered it I used a small clip on fan to blow air across the top of the kettle, and I kept a spray bottle of ice water at the ready.

__________________
dzlater is offline
 
Reply With Quote Quick reply to this message
Old 11-09-2010, 11:23 AM   #6
Revvy
Post Hoc Ergo Propter Hoc
HBT_LIFETIMESUPPORTER.png
Feedback Score: 0 reviews
 
Revvy's Avatar
Recipes 
 
Join Date: Dec 2007
Location: "Detroitish" Michigan
Posts: 40,804
Liked 2747 Times on 1648 Posts
Likes Given: 3485

Default

I've been using fermcap for years. You can have a rolling boil going one inch from the lip of the kettle, and take a nap or surf HBT between hop additions and have no worry. I've done both.

__________________

Like my snazzy new avatar? Get Sons of Zymurgy swag, here, and brew with the best.

Revvy's one of the cool reverends. He has a Harley and a t-shirt that says on the back "If you can read this, the bitch was Raptured. - Madman

I gotta tell ya, just between us girls, that Revvy is HOT. Very tall, gorgeous grey hair and a terrific smile. He's very good looking in person, with a charismatic personality... he drives like a ****ing maniac! - YooperBrew

Revvy is offline
 
Reply With Quote Quick reply to this message
Old 11-09-2010, 12:36 PM   #7
mjohnson
Feedback Score: 0 reviews
Recipes 
 
Join Date: Mar 2010
Location: New Jersey
Posts: 575
Liked 33 Times on 30 Posts
Likes Given: 18

Default

People's definition of "vigorous boil" is also different. You don't have to overdo it. Make sure its rolling, but don't try to make the wort jump out of the pot.

__________________
mjohnson is offline
 
Reply With Quote Quick reply to this message
Old 11-09-2010, 01:02 PM   #8
nebben
Feedback Score: 0 reviews
Recipes 
 
Join Date: Nov 2008
Location: Now legal in Utah
Posts: 1,188
Liked 11 Times on 11 Posts
Likes Given: 10

Default

I've done a few things to help avoid boilovers. Generally, the foam will increase and peak as you add hops at the 60 minute mark. This is really the most imminent threat of a boilover at this point. I always feather the flame down almost to idle and stir , trying to knock down the foam. I've also fanned it and sprayed a water mister at it, with varying success. Once it breaks, you can gently turn the flame back up a little and usually just go through the rest of it without too much hassle.

A general rule is that if you're adding hops, they'll cause a bit of foam to be generated, even later in the boil. A friend and I were brewing an extract batch at his house, and even though we were 5 minutes away from the end of the boil, I haphazardly threw in the 1oz hop addition without adjusting the burner. A major boilover occurred and he lost almost 1/2G of wort.

My general rule is to always feather the flame and keep it high enough to just barely maintain a good boil, and always turn it down when adding things until you can bring it back under control.

__________________
nebben is offline
 
Reply With Quote Quick reply to this message
Old 11-09-2010, 01:08 PM   #9
ArcaneXor
Feedback Score: 0 reviews
Recipes 
 
Join Date: Nov 2007
Posts: 4,439
Liked 85 Times on 79 Posts
Likes Given: 16

Default

I am getting a new 7.5 gallon kettle on Thursday. Until now, I boiled 5+ gallons in a 5.5 gallon pot for my all grain batches and rarely had problems with boilovers. It's a matter of watching the heat input and using Fermcap or another foam control agent.

__________________
The Fiesty(sic) Goat Brewery est. 2007 & Clusterfuggle Experimental Ales est. 2009
Primary: Saison, Berliner Weisse, sLambic I, sLambic II, IPA, 70/-
Secondary: Orange Blossom Mead, Flanders Red I
Kegged: Fat Man Porter w/ 1469, Fat Man Porter w/ 005, Centennial Falcon w/ Conan, Centennial Falcon w/ Denny's, Barrel-aged Fat Man Porter, Belgian Dark Strong, Dark Mild
ArcaneXor is offline
 
Reply With Quote Quick reply to this message
Old 11-09-2010, 03:02 PM   #10
Bobby_M
Vendor and Brewer
HBT_SPONSOR.png
Vendor Ads 
Feedback Score: 2 reviews
 
Bobby_M's Avatar
Recipes 
 
Join Date: Aug 2006
Location: Whitehouse Station, NJ
Posts: 22,105
Liked 1015 Times on 678 Posts
Likes Given: 28

Default

My advice is to just hold about 2 gallons back in a separate vessel and slowly add it as you boil off some volume. You could also boil that in a separate pot.

__________________
BrewHardware.com
Sightglass, Refractometer, Ball Valve, Weldless bulkhead, Thermometer, Decals, Stainless Steel Fittings, Compression Fittings, Camlock Quick Disconnects, Scale, RIMS tube, Plate Chiller, Chugger Pump, Super Clear Silicone Tubing, and more!

New Stuff?
Bobby_M is offline
 
Reply With Quote Quick reply to this message
Reply



Quick Reply
Message:
Options
Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Making a regular 7 gallon pot into a brew kettle. jonbomb General Beer Discussion 10 09-01-2010 10:19 PM
Is 8 gallon kettle Enough?/ Average Size of all Grain Brews? Meatball358 General Beer Discussion 15 08-20-2010 01:24 AM
CPC disconnects. Can you leave them connected to the kettle valve during the boil? dcbeerboy General Beer Discussion 2 02-08-2010 01:44 PM
My Boil Kettle Sprung a leak! Ceedubya General Beer Discussion 2 12-05-2008 02:46 AM
Fementing In The Boil Kettle HenryHill General Beer Discussion 15 04-19-2008 06:11 PM