Ss Brewing Technologies Giveaway!

Home Brew Forums > Home Brewing Beer > Beginners Beer Brewing Forum > Kettle size for 3-gallon all-grain batches?
Reply
 
LinkBack Thread Tools
Old 10-24-2012, 02:54 PM   #1
homebrewhaha
Feedback Score: 0 reviews
Recipes 
 
Join Date: Oct 2008
Location: Boston, MA
Posts: 218
Liked 13 Times on 12 Posts
Likes Given: 24

Default Kettle size for 3-gallon all-grain batches?

I want to try some scaled-down all grain batches with my current equipment that I've been using for extract +steeping grains.

Thinking BIAB, start with something very simple, like a SMaSH, or maybe Edwort's Haus Pale Ale just so I can get the feel for the process.

My question is what's the largest size AG batch I can accommodate in my current 4-gallon brew kettle? I'd like to shoot for 3-gallon batches but I think I may have to go down to 2.5 ...

__________________
homebrewhaha is offline
 
Reply With Quote Quick reply to this message
Old 10-24-2012, 03:05 PM   #2
chickypad
lupulin shift victim
HBT_SUPPORTER.png
Feedback Score: 0 reviews
 
chickypad's Avatar
Recipes 
 
Join Date: Jul 2010
Location: SF Peninsula
Posts: 2,693
Liked 260 Times on 232 Posts
Likes Given: 119

Default

I think that's going to be difficult if you don't want to top off (what's your boil off rate on that kettle?). I do 3 gal stovetop batches in my old 5 gallon kettle and I start the boil with 3.75 gal.

__________________
chickypad is offline
 
Reply With Quote Quick reply to this message
Old 10-24-2012, 03:11 PM   #3
edmanster
Whats Under Your Kilt
HBT_LIFETIMESUPPORTER.png
Feedback Score: 0 reviews
 
edmanster's Avatar
Recipes 
 
Join Date: Feb 2011
Location: Taylorsville, Utah
Posts: 1,698
Liked 74 Times on 60 Posts
Likes Given: 53

Default

20qt is prolly the smallest I would go!!

__________________
Quote:
Originally Posted by cadarnell
'how will i explain this to my kids' ... if i have to ask that, then i think my kids are in trouble ... just my 2 cents ... HAVE A BEER !!!
Father of 4 girls

Suffers from Zymocenosilicaphobia
edmanster is online now
 
Reply With Quote Quick reply to this message
Old 10-24-2012, 03:22 PM   #4
trevor_b
Feedback Score: 0 reviews
Recipes 
 
Join Date: Mar 2011
Location: Georgetown, TX
Posts: 178
Liked 1 Times on 1 Posts

Default

Quote:
Originally Posted by chickypad
I think that's going to be difficult if you don't want to top off (what's your boil off rate on that kettle?). I do 3 gal stovetop batches in my old 5 gallon kettle and I start the boil with 3.75 gal.
BIAB right? How much water volume do you have in the kettle for the mash? Also, what size fermenter do you use?

I've been wanting to try 3 gallon AG BIAB with my 5 gallon brew kettle.
__________________
trevor_b is offline
 
Reply With Quote Quick reply to this message
Old 10-24-2012, 03:41 PM   #5
TopherM
Vinz Clortho - the Keymaster of Gozer the Gozerian
HBT_SUPPORTER.png
Feedback Score: 0 reviews
 
TopherM's Avatar
Recipes 
 
Join Date: Mar 2011
Location: St. Petersburg, FL
Posts: 3,826
Liked 410 Times on 324 Posts
Likes Given: 21

Default

An average OG (1.05ish) 3.0 gallon batch of full volume BIAB will take up 4.68 gallons of space at 6.0 lbs of grain.

An average OG 2.5 gallon batch of full volume BIAB will take up 3.9 gallons of space at 5.0 lbs of grain. I don't think that's reasonably feasible either.

For full volume BIAB, you would need to be closer to a 2-2.25 gallon batch.

Do you have a second pot? You could easily do 3.0 gallon BIAB batches in a 4.0 gallon pot if you did partial volume and did a dunk sparge in a second pot. 3.0 gallons of water in your mash tun with 6.0 lbs of grain would take up 3.48 gallons of space. You'd then have about 1.7 gallons of 170F water in a second pot and dunk sparge your bag into that water after the mash for 10 min, squeeze the bag, then combine the wort for the boil.

You could also do a 3.0 gallon partial volume in the 4.0 gallon pot and just use top off water post-cool down.

__________________

Primary #1 - Oktoberfest
Primary #2 - Chamomile Honey Wheat
Primary #3 - EMPTY!
Secondary #1 - Downtown Flanders Brown (brewed August 2012)
Keg #1 - Coffee Vanilla Stout
Keg #2 - Fall of the Ukraine Baltic Porter (lagering in keg)
Keg #3 - EMPTY!
Bottled - NONE!

TopherM is offline
 
Reply With Quote Quick reply to this message
Old 10-24-2012, 03:46 PM   #6
WoodlandBrew
HBT_SUPPORTER.png
Feedback Score: 0 reviews
 
WoodlandBrew's Avatar
Recipes 
 
Join Date: Oct 2012
Location: Malden, MA
Posts: 1,765
Liked 123 Times on 120 Posts
Likes Given: 57

Default

I do 2.5 gallon batches BIAB in a 4 gallon kettle. The 4 gallon kettle takes long enough to warm up on the stove top so I wouldn't go any larger. You could do a three gallon batch if you don't mind topping off. I've done as much as 10lbs of grain with this setup, but that is pretty tight, and efficiency takes a plunge because of it.

Heres a picture of my setup:
http://woodlandbrew.blogspot.com/2012/09/biab.html

This weekend I'm doing a 3 gallon batch with just over 5 pounds of grain in my 4 gallon kettle. I'll let you know how it goes!

__________________

The 2nd edition is now available: Brewing Engineering
Woodland Brewing Research Blog Applied Science for Better Beer.

WoodlandBrew is offline
 
Reply With Quote Quick reply to this message
Old 10-24-2012, 04:08 PM   #7
homebrewhaha
Feedback Score: 0 reviews
Recipes 
 
Join Date: Oct 2008
Location: Boston, MA
Posts: 218
Liked 13 Times on 12 Posts
Likes Given: 24

Default

Quote:
Originally Posted by TopherM View Post
Do you have a second pot? You could easily do 3.0 gallon BIAB batches in a 4.0 gallon pot if you did partial volume and did a dunk sparge in a second pot. 3.0 gallons of water in your mash tun with 6.0 lbs of grain would take up 3.48 gallons of space. You'd then have about 1.7 gallons of 170F water in a second pot and dunk sparge your bag into that water after the mash for 10 min, squeeze the bag, then combine the wort for the boil.
Thanks for your help. Sounds like I will be investing, at the very least, in a larger kettle if I want to go down this road.

Quote:
Originally Posted by TopherM View Post
You could also do a 3.0 gallon partial volume in the 4.0 gallon pot and just use top off water post-cool down.
So I assume in this scenario I have to somehow calculate how much extra grain to use, right?
__________________
homebrewhaha is offline
 
Reply With Quote Quick reply to this message
Old 10-24-2012, 04:23 PM   #8
Yesfan
HBT_LIFETIMESUPPORTER.png
Feedback Score: 0 reviews
 
Yesfan's Avatar
Recipes 
 
Join Date: Aug 2012
Location: Cleveland, TN
Posts: 753
Liked 55 Times on 49 Posts
Likes Given: 209

Default

Seems like it would be just easier to do a 2.5 gallon batch since it's just a matter of splitting most of the 5 gallon recipes here in half. Then if anything else, you'd only have to step up to a 5 gallon kettle if the 4 gal won't do for BIAB.

__________________
On Deck: Nut Brown Ale, West Coast Radical Red, Mongoose IPA, Strawberry Blonde, Cascading Falls Pale Ale
Primary: Dawson's Multigrain Red, Yazoo Dos Perros clone
Bottled: Dead Ringer IPA, Keeler's Reverse Burster Altbier, Petite Saison d'Ete, St Paddy's Irish Stout, Rum Runner Stout (1G), La Petite Orange, Chocolate Milk Stout
Kegged: St Paddy's Irish Stout, Chocolate Milk Stout. La Petite Orange, Dead Ringer IPA
Yesfan is offline
 
Reply With Quote Quick reply to this message
Old 10-24-2012, 04:55 PM   #9
TopherM
Vinz Clortho - the Keymaster of Gozer the Gozerian
HBT_SUPPORTER.png
Feedback Score: 0 reviews
 
TopherM's Avatar
Recipes 
 
Join Date: Mar 2011
Location: St. Petersburg, FL
Posts: 3,826
Liked 410 Times on 324 Posts
Likes Given: 21

Default

Quote:
So I assume in this scenario I have to somehow calculate how much extra grain to use, right?
3.0 gallons of water in your mash tun with 6.0 lbs of grain would take up 3.48 gallons of space.m 6.0 lbs of grain in a 3.0 gallon batch is equivilant to 10.0 lbs of grain in a 5.0 gallon batch. Unless you are trying to make a bigger beer than that, no extra grain needed.

You just mash 6.0 lbs of grain in 3.0 gallons of water, pull and squeeze the bag. Do the boil, then after cooldown top off water to get to your recipe OG, stirring well to make sure the gravity is consistent, the same way ou would with extract. It should be around 1.7 gallons of water, but could be a little more or less, depending on your efficiency.
__________________

Primary #1 - Oktoberfest
Primary #2 - Chamomile Honey Wheat
Primary #3 - EMPTY!
Secondary #1 - Downtown Flanders Brown (brewed August 2012)
Keg #1 - Coffee Vanilla Stout
Keg #2 - Fall of the Ukraine Baltic Porter (lagering in keg)
Keg #3 - EMPTY!
Bottled - NONE!

TopherM is offline
2
People Like This 
Reply With Quote Quick reply to this message
Old 10-25-2012, 01:30 PM   #10
homebrewhaha
Feedback Score: 0 reviews
Recipes 
 
Join Date: Oct 2008
Location: Boston, MA
Posts: 218
Liked 13 Times on 12 Posts
Likes Given: 24

Default

Thanks for your help guys!

__________________
homebrewhaha 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
Kettle size for both 5 and 10 gallon batches? subliminalurge Equipment/Sanitation 32 09-04-2013 02:00 AM
BIAB kettle size for 2.5gal batches skyzo All Grain & Partial Mash Brewing 17 07-05-2011 01:26 PM
HLT size for 10 gallon batches? TheBeerNerd Equipment/Sanitation 5 03-11-2011 02:00 PM
Is 8 gallon kettle Enough?/ Average Size of all Grain Brews? Meatball358 General Beer Discussion 15 08-20-2010 01:24 AM
What Size Kettle for 10gal Batches? Beerthoven Equipment/Sanitation 5 02-07-2008 05:29 PM