Home Brew Forums > Home Brewing Beer > All Grain & Partial Mash Brewing > Adding heat to a BIAB mash
Reply
 
Thread Tools
Old 08-27-2012, 12:16 AM   #1
ArcLight
Feedback Score: 0 reviews
Recipes 
 
Join Date: May 2011
Location: Millburn, NJ
Posts: 1,091
Liked 69 Times on 58 Posts
Likes Given: 78

Default Adding heat to a BIAB mash

It is possible to burn/scorch a BIAB bag when adding heat to your mash kettle.

When adding heat (lets say a a few degrees, up to 15 degrees for mash out) how do you prevent your bag from being damaged?

I can think of two methods:

1) raise the bag a little, and stir occasionally

2) use a cake rack or some kind of false bottom to keep the bag off the bottom.
Anything cheaper than this?
http://www.amazon.com/Round-Stainles...&s=home-garden


Any other way to add heat, and protect your bag? I suppose you can try leaving the bag in and stir constantly - since it's just for a short time.

Any other ideas?

Ideally, it would be nice to be able to add heat without having to raise the bag.


ArcLight is offline
 
Reply With Quote
Old 08-27-2012, 12:20 AM   #2
tonyc318
Feedback Score: 0 reviews
Recipes 
 
Join Date: Dec 2011
Location: Astoria, Oregon
Posts: 608
Liked 34 Times on 27 Posts

Default

I put a metal strainer at the bottom and tie it with some fishing line to pull it out before the boil. Works great.


tonyc318 is offline
 
Reply With Quote
Old 08-27-2012, 01:02 AM   #3
ArcLight
Feedback Score: 0 reviews
Recipes 
 
Join Date: May 2011
Location: Millburn, NJ
Posts: 1,091
Liked 69 Times on 58 Posts
Likes Given: 78

Default

Quote:
Originally Posted by tonyc318 View Post
I put a metal strainer at the bottom and tie it with some fishing line to pull it out before the boil. Works great.
Tony,
Might you have a link to the strainer you used?

Fishing line wont be affected by the heat?
What about a boil?
ArcLight is offline
 
Reply With Quote
Old 08-27-2012, 01:10 AM   #4
wilserbrewer
BIAB Expert Tailor
HBT_SPONSOR.png
Vendor Ads 
Feedback Score: 10 reviews
 
wilserbrewer's Avatar
Recipes 
 
Join Date: May 2007
Location: Jersey Shore, Jersey
Posts: 7,949
Liked 762 Times on 611 Posts
Likes Given: 15

Default

I have not bothered w/ a mash out since reading this...

http://www.homebrewtalk.com/f36/biab...ashout-309533/

or possibly good reading here as well...

http://www.homebrewtalk.com/f36/pros...68/index2.html

I'm not convinced the mash out is really needed or all that helpful for BIAB...Your mileage and opinions may vary...cheers.
wilserbrewer is offline
 
Reply With Quote
Old 08-27-2012, 01:12 AM   #5
tonyc318
Feedback Score: 0 reviews
Recipes 
 
Join Date: Dec 2011
Location: Astoria, Oregon
Posts: 608
Liked 34 Times on 27 Posts

Default

Quote:
Originally Posted by ArcLight

Tony,
Might you have a link to the strainer you used?

Fishing line wont be affected by the heat?
What about a boil?
Sorry, no link. Just your standard veggie steamer found at a kitchen store. I will try to find one for u a little later.
tonyc318 is offline
 
Reply With Quote
Old 08-27-2012, 01:34 AM   #6
evrose
Feedback Score: 0 reviews
Recipes 
 
Join Date: Jun 2012
Location: Carlsbad, CA
Posts: 841
Liked 300 Times on 159 Posts
Likes Given: 234

Default

I use one of these in my 5 gallon kettle. Works great, and my wife didn't mind me buying it because we use it for food also... http://amzn.com/B000Q4N2LO
evrose is offline
 
Reply With Quote
Old 08-27-2012, 01:54 AM   #7
tonyc318
Feedback Score: 0 reviews
Recipes 
 
Join Date: Dec 2011
Location: Astoria, Oregon
Posts: 608
Liked 34 Times on 27 Posts

Default

Quote:
Originally Posted by evrose
I use one of these in my 5 gallon kettle. Works great, and my wife didn't mind me buying it because we use it for food also... http://amzn.com/B000Q4N2LO
That's exactly what I use
tonyc318 is offline
 
Reply With Quote
Old 08-27-2012, 02:02 AM   #8
ArcLight
Feedback Score: 0 reviews
Recipes 
 
Join Date: May 2011
Location: Millburn, NJ
Posts: 1,091
Liked 69 Times on 58 Posts
Likes Given: 78

Default

Quote:
Originally Posted by wilserbrewer View Post
I have not bothered w/ a mash out since reading this...

http://www.homebrewtalk.com/f36/biab...ashout-309533/

or possibly good reading here as well...

http://www.homebrewtalk.com/f36/pros...68/index2.html

I'm not convinced the mash out is really needed or all that helpful for BIAB...Your mileage and opinions may vary...cheers.

Some interesting stuff here, thank you for the links.

For large grain bills - I think that once I squeeze the bag, if I were to put the bag back into a pot with hot water, let it sit a few minutes, and pull it out, let it drain, and the squeeze, I would get a fair amount of extra sugar in the wort.
ArcLight is offline
 
Reply With Quote
Old 08-27-2012, 11:49 AM   #9
wilserbrewer
BIAB Expert Tailor
HBT_SPONSOR.png
Vendor Ads 
Feedback Score: 10 reviews
 
wilserbrewer's Avatar
Recipes 
 
Join Date: May 2007
Location: Jersey Shore, Jersey
Posts: 7,949
Liked 762 Times on 611 Posts
Likes Given: 15

Default

Quote:
Originally Posted by ArcLight View Post
For large grain bills - I think that once I squeeze the bag, if I were to put the bag back into a pot with hot water, let it sit a few minutes, and pull it out, let it drain, and the squeeze, I would get a fair amount of extra sugar in the wort.
Yes! With larger bigger beers of higher gravity the runnings absorbed by the grain will also be higher gravity, and a sparge of some sort will likely help.

Back to the original topic of adding heat w/ the bag in the kettle...I have read of people doing it without issue, and aslo people scorching the bag...my guess is that w/ low and gentle heating and occasional stirring there likely would not be an issue...just a guess of course, I've never tried it. I think polyester melts at like 3-400 degrees FWIW???
wilserbrewer is offline
 
Reply With Quote
Old 08-27-2012, 12:29 PM   #10
ArcLight
Feedback Score: 0 reviews
Recipes 
 
Join Date: May 2011
Location: Millburn, NJ
Posts: 1,091
Liked 69 Times on 58 Posts
Likes Given: 78

Default

>.Back to the original topic of adding heat w/ the bag in the kettle...I have read of people doing it without issue, and aslo people scorching the bag...my guess is that w/ low and gentle heating and occasional stirring there likely would not be an issue...just a guess of course, I've never tried it. I think polyester melts at like 3-400 degrees FWIW???

I have this really cool Wilser bag and don't want to risk damaging it!

I wonder if instead of sparging, I try raising the bag, draining, squeezing, then lowering the bag so it reabsorbs wort, then raising, draining, squeezing again.
I might try this and take measurements using a refractometer.
How many additional points does a 2nd drain/squeeze (using wort vs water) give?
I think I will start keeping a log - just out of curiosity.
Probably not worth the effort, but at least I will have measurements to back it up.


ArcLight is offline
 
Reply With Quote
Reply


Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
BIAB: adding grains before heating water? Boek All Grain & Partial Mash Brewing 11 11-09-2013 09:00 PM
Keg mash tun heat loss q? pegelow04 All Grain & Partial Mash Brewing 11 01-26-2013 01:44 PM
Mash out with direct heat? player2ma All Grain & Partial Mash Brewing 12 01-20-2012 07:31 PM
Scorched my mash or how to heat your MLT? PKsBrew All Grain & Partial Mash Brewing 5 02-24-2011 09:23 PM
keeping the heat in the mash tun makapol All Grain & Partial Mash Brewing 15 06-03-2008 09:03 PM


Forum Jump

Newest Threads

LATEST SPONSOR DEALS