Spike Brewing Giveaway - New v3 Kettle

Home Brew Forums > Home Brewing Beer > Beginners Beer Brewing Forum > BIAB bag question
Thread Tools
Old 08-13-2013, 07:54 PM   #1
Feedback Score: 0 reviews
Join Date: Aug 2013
Posts: 52
Likes Given: 33

Default BIAB bag question

Hi everyone,
What are BIAB bags made out of? Among them, which has the best properties like handling heavy grains? And also what size should the holes in the bag be?

I am a 1-gallon brewer so that is not that important now, but if I do 5 gallon batches in the future, the bag should be able hold the grains of my 5 gallon batch.

kojinakata is offline
Reply With Quote
Old 08-13-2013, 08:11 PM   #2
Feedback Score: 1 reviews
Rockn_M's Avatar
Join Date: Jan 2013
Location: Dallas, Tx
Posts: 1,475
Liked 304 Times on 226 Posts
Likes Given: 32


I picked up 5 gallon paint bags from Home Depot. They are pretty durable, easy to clean and cheap! I had one tear at the seam but that was my fault when dumping the spent grains.

Rockn_M is offline
Reply With Quote
Old 08-13-2013, 08:16 PM   #3
Lost in a Maze
Feedback Score: 0 reviews
LabRatBrewer's Avatar
Join Date: Dec 2011
Location: Laguna Niguel, CA
Posts: 3,022
Liked 1031 Times on 718 Posts
Likes Given: 1614


Wilserbrewer is a vendor on HBT, and his BIAB bags are extremely nice quality at at very good price. He custom makes them for the size of your pot. I have made many batches with his bags from 5 gallons to 11 gallons. (My pot is 15 gallon).

Board of Directors, California Homebrewers Association
LabRatBrewer is offline
Reply With Quote
Old 08-13-2013, 08:22 PM   #4
struggling author
Feedback Score: 0 reviews
unionrdr's Avatar
Join Date: Feb 2011
Location: Sheffield, Ohio
Posts: 37,554
Liked 3426 Times on 2949 Posts
Likes Given: 2544


I use a paint strainer bag,5 gallon made out of course weave nylon. Medium weave would be better,imo. I use up to 6 pounds of grains or more in mine & it takes it just fine. The nylon is really easy & quick to clean.
My sci-fi & home brewing books on amazon-kindle now! New additions coming!
NEW, REVISED EDITION of book one of Time Lords 2034 series now on Amazon Kindle! http://www.amazon.com/dp/B00NTA0L6G
My homebrewing book "Tippy Tippy Tappy" on Kindle! http://www.amazon.com/dp/B00PBAP6JO
unionrdr is offline
kojinakata Likes This 
Reply With Quote
Old 08-13-2013, 08:33 PM   #5
Feedback Score: 0 reviews
jtratcliff's Avatar
Join Date: Feb 2013
Location: Pasadena, CA
Posts: 1,065
Liked 258 Times on 192 Posts
Likes Given: 52


In general the fabric you want is "swiss voile" ... You can buy the stuff at a fabric store and make your own bag if you're handy that way.

Until recently I was using voile curtains from Ikea (~$4.50 for 2 large panels) and just folding a panel over a few times until it was about he right size to line the kettle. I've read here that people also have used voile curtains from Walmart & Lowes. Either folded or sewn into bag form. The weave on the Ikea curtain is pretty coarse, so you'd definitely want to layer it.

But I have to +1 the Wilserbrewer bag. I just got one and have only done 2 batches with it but it has a nice fine weave and it's much nicer dealing with a properly sized bag rather than the excess fabric of a folded curtain.
jtratcliff is offline
kojinakata Likes This 
Reply With Quote
Old 08-13-2013, 09:15 PM   #6
Feedback Score: 0 reviews
Join Date: Aug 2012
Location: Aiken, SC
Posts: 1,653
Liked 249 Times on 204 Posts
Likes Given: 151


If you're freindly with a coffee house you may be able to get a large toddy bag for cheap or free. They are nylon mesh bags, made for holding 5+ lbs of coffee, with an elastic band at the opening. It easily holds 10-15 lbs of grain. It's made by a company called Toddy Products. I've had excellent results using it in a bunch of standard mashes and few BIAB mashes.
roastquake is offline
Reply With Quote
Old 08-13-2013, 11:21 PM   #7
Feedback Score: 0 reviews
Join Date: Apr 2012
Location: Charlottesville, Va
Posts: 696
Liked 68 Times on 57 Posts
Likes Given: 33


I use Walmart voile fabric curtains that I have sewn into bags. The Wiserbrewer bags I have seen are great and his strength test proved to me that if built correctly the bags will survive any grainbill a homebrewer is going to attempt.
Suburban Farmhouse Brewery

Primary: Home Hops 15 IPA
Bottled: Huis Koyt, Summer In Sommelsdijk, Trekker Huis ( Tractor House) Saison
Up coming beers: Higgs Special with Homegrown hops
mb82 is offline
Reply With Quote
Old 08-14-2013, 09:09 PM   #8
BIAB Expert Tailor
Vendor Ads 
Feedback Score: 10 reviews
wilserbrewer's Avatar
Join Date: May 2007
Location: Jersey Shore, Jersey
Posts: 8,872
Liked 1094 Times on 852 Posts
Likes Given: 15


Yes, polyester voile is the fabric of choice. Size the bag to entirely line your kettle with extra depth to fold over the top. Stitch the bag with a taper at the bottom like shown in my avatar. Stitch the bag, turn inside out and stitch again twice FTW!

A drawstring at the top is handy as well! Cheers! PM me if you have any questions on sewing a bag!

wilserbrewer is offline
Reply With Quote

Thread Tools

Similar Threads
Thread Thread Starter Forum Replies Last Post
BIAB question NevermoreBrew BIAB Brewing 23 01-11-2013 09:26 PM
BIAB Question LiquidFlame All Grain & Partial Mash Brewing 10 09-06-2012 05:40 PM
BIAB Question el_caro All Grain & Partial Mash Brewing 95 12-05-2011 05:07 AM
BIAB Question jgoette All Grain & Partial Mash Brewing 41 09-23-2010 12:57 PM
BIAB Bag Question f4an All Grain & Partial Mash Brewing 14 05-03-2010 01:29 PM

Forum Jump