Kegconnection Complete Starter Kit and More Giveaway!


Home Brew Forums > Home Brewing Beer > All Grain & Partial Mash Brewing > anyone done a brew in a bag

Reply
 
LinkBack Thread Tools
Old 09-23-2012, 10:43 PM   #1
ThePonchoKid
Feedback Score: 0 reviews
Recipes 
 
Join Date: Apr 2012
Location: Toronto, CAN
Posts: 377
Liked 5 Times on 5 Posts
Likes Given: 16

Default anyone done a brew in a bag

1 min boil brew?

I'm temped to try this.

How much water would I need for 10lbs of grain at 5.25 gal after a 1 min boil? 5.6 gal?

__________________
ThePonchoKid is offline
 
Reply With Quote Quick reply to this message
Old 09-23-2012, 11:12 PM   #2
ajf
Senior Member
HBT_LIFETIMESUPPORTER.png
Feedback Score: 0 reviews
 
ajf's Avatar
Recipes 
 
Join Date: Oct 2005
Location: Long Island
Posts: 4,643
Liked 99 Times on 93 Posts
Likes Given: 39

Default

If you are going to boil for just 1 minutes, how are you going to get your hot break to precipitate, and where are you going to get you hop bitterness from?

-a.

__________________

There are only 10 types of people in this world. Those that understand binary, and those that don't.

ajf is offline
 
Reply With Quote Quick reply to this message
Old 09-23-2012, 11:19 PM   #3
ThePonchoKid
Feedback Score: 0 reviews
Recipes 
 
Join Date: Apr 2012
Location: Toronto, CAN
Posts: 377
Liked 5 Times on 5 Posts
Likes Given: 16

Default

Quote:
Originally Posted by ajf View Post
If you are going to boil for just 1 minutes, how are you going to get your hot break to precipitate, and where are you going to get you hop bitterness from?

-a.
dump all the hops in in one go. can easily get 30ibu with 3-4oz high aa% hop pellets
__________________
ThePonchoKid is offline
 
Reply With Quote Quick reply to this message
Old 09-23-2012, 11:20 PM   #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: 60,237
Liked 4254 Times on 3099 Posts
Likes Given: 807

Default

Quote:
Originally Posted by ajf View Post
If you are going to boil for just 1 minutes, how are you going to get your hot break to precipitate, and where are you going to get you hop bitterness from?

-a.
That, and what about boiling off of the DMS precursors?
__________________
Broken Leg Brewery
Giving beer a leg to stand on since 2006
Yooper is offline
 
Reply With Quote Quick reply to this message
Old 09-23-2012, 11:51 PM   #5
ThePonchoKid
Feedback Score: 0 reviews
Recipes 
 
Join Date: Apr 2012
Location: Toronto, CAN
Posts: 377
Liked 5 Times on 5 Posts
Likes Given: 16

Default

Quote:
Originally Posted by Yooper View Post
That, and what about boiling off of the DMS precursors?
What are those?

I was making yogurt today and that's what made me think about the 1 min boil. You only need to make the milk reach a boil before cooling it and adding your cultures. So if not 1 min, what's the shortest boil time you can possibly do?
__________________
ThePonchoKid is offline
 
Reply With Quote Quick reply to this message
Old 09-23-2012, 11:52 PM   #6
CalmNcents
Feedback Score: 0 reviews
Recipes 
 
Join Date: May 2012
Posts: 12
Default

I'd do a one hour mash at a temp that suits the beer style, followed by one hour boil or 90 minutes for wheat. The water volume depends on your equipment loss and method of removing water from grain bag. I use the drip method, some will twist and squeeze the bag. I leave about .4 to .5 gal in the bag, I fear squeezing, that's just my way. If you tend to boil off 1.5 gallons in an hour you will need to add that to the pre boil volume. For me, that means .5 gal for grain loss & 1.5 gal evap loss in an hour, plus desired post boil volume 5.5 gal. So I would mash with 7.5 gallons for a non wheat beer. Keep the grain bag off the kettle base. You don't want a melted or burned sack. That's good advice for anytime. Enjoy, let me know how it turns out.

__________________
CalmNcents is offline
 
Reply With Quote Quick reply to this message
Old 09-24-2012, 12:35 AM   #7
ajf
Senior Member
HBT_LIFETIMESUPPORTER.png
Feedback Score: 0 reviews
 
ajf's Avatar
Recipes 
 
Join Date: Oct 2005
Location: Long Island
Posts: 4,643
Liked 99 Times on 93 Posts
Likes Given: 39

Default

Quote:
Originally Posted by ThePonchoKid View Post
dump all the hops in in one go. can easily get 30ibu with 3-4oz high aa% hop pellets
According to Promash, using 6 lbs US pale malt for a 5g batch, you would need 9.75 oz of 15%AA pellet hops to achieve 30 IBU with a 1 minute boil. Increase the malt to get an OG > 1.032, and you would need even more hops.

Quote:
Originally Posted by Yooper View Post
That, and what about boiling off of the DMS precursors?
Agreed, and there are probably many other reasons for not doing it, that neither of us have thought about.

-a.
__________________

There are only 10 types of people in this world. Those that understand binary, and those that don't.

ajf is offline
 
Reply With Quote Quick reply to this message
Old 09-24-2012, 12:45 AM   #8
ThePonchoKid
Feedback Score: 0 reviews
Recipes 
 
Join Date: Apr 2012
Location: Toronto, CAN
Posts: 377
Liked 5 Times on 5 Posts
Likes Given: 16

Default

That's a lot of hops

__________________
ThePonchoKid is offline
 
Reply With Quote Quick reply to this message
Old 09-24-2012, 12:47 AM   #9
Leithoa
Feedback Score: 0 reviews
Recipes 
 
Join Date: Aug 2012
Location: Akron, ohio
Posts: 299
Liked 14 Times on 13 Posts
Likes Given: 14

Default

For 10 lbs of grain and a desired batch size of 5.25 gallons you'd need:
Batch volume * (1 + grain absorption constant ) = 5.25*(1+0.2) = 6.3 gallons. Or 25.2 quarts.
You're going to want to split that up so you don't mash too thin. Most people recommend 1.25-2 quarts of water per pound of grain. So: 1.5 quarts/lb * 10lbs. = 15 quarts of mash water.
Then your sparge volume is: (batch size + loss) - Mash volume = (25.2 + your system loss) - 15 = 10.2 quarts = 2.6 gallons.

Like others have said, getting hop bitterness is going to be difficult since even if you can extract the correct compounds they won't have enough time to undergo the reactions that give you the smooth bitterness you want. I'm sure you could find already isomerized hop oils online somewhere but it won't be the same thing. If you're looking to cut down your brew day that bad you can buy pre-bittered liquid malt extract, but it's not known for its superior flavor profile.
The shortest boil I've done was a 40 minute APA, it was good but it lacked the maltiness I was after that comes from some of the sugars getting caramelized in the boil. You could probably get away with a 20-30 minute boil if you used pre-bittered/hopped liquid extract and then added your own flavor hops in the remaining time. I doubt you'd win ribbons with it but it wouldn't be bad by any means. Keep in mind the long boil is there for a number of reasons: Sanitization, hop oil isomerization, protein denaturing, sugar caramelization, etc. Unfortunately you can only cut so much time off of the brewing process.

DMS is an undesired flavor compound that tastes like corn. The chemicals needed to create it are boiled off during the 60-90 minute boil process. You can read more here. http://www.homebrewtalk.com/wiki/ind...ethyl_sulfides

__________________

1°: Graham's English Cider, Cider; 2°: Mango Melomel; Conditioning: Banana wine, Cider, Orange/Clover blossom mead, Cyser, JAOM, In like a Lion RIS ; Drinking: In like a Lion RIS

Leithoa is offline
 
Reply With Quote Quick reply to this message
Old 09-24-2012, 12:55 AM   #10
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: 60,237
Liked 4254 Times on 3099 Posts
Likes Given: 807

Default

Quote:
Originally Posted by ajf View Post



Agreed, and there are probably many other reasons for not doing it, that neither of us have thought about.

-a.
Probably because there are about 100 reasons to not do this, and only one to do it. To save time. If saving 59 minutes is so crucial, then using six times as many hops might be worth it if you could find a way to boil off the DMS precursors and get a good hot break while doing the 1 minute boil. I assume you'd kill the lactobacillus on the grain with a 1 minute boil.

Bringing it to a boil would take the same amount of time, cooling the wort would take the same amount of time, and so would everything else. The only time savings would be the 59 minutes of the boil. If hops are selling for $3/ounce, it would only cost $43 more in hops.

What? No takers?
__________________
Broken Leg Brewery
Giving beer a leg to stand on since 2006
Yooper 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
New brew schedule... or how to brew with toddlers! (input/advice sought!) Zymurgrafi All Grain & Partial Mash Brewing 56 10-22-2013 05:22 PM
First all grain brew (with amazing brew sculpture pic) alpo All Grain & Partial Mash Brewing 14 02-11-2013 03:50 AM
Sugar question on End of World Brew day brew Santoka All Grain & Partial Mash Brewing 3 05-19-2011 06:51 PM
First brew w/ pictures (My only Patrial Mash brew, then going AG) DavidSteel All Grain & Partial Mash Brewing 3 12-14-2009 01:34 AM
22 quart cooler, 2 4 gallon brew pots: how much can I brew AG? Cugel All Grain & Partial Mash Brewing 9 05-31-2008 09:40 AM