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Old 06-05-2014, 04:23 AM   #21
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Originally Posted by harebearva View Post
I made my own bag. Made it to specifically fit my kettle. Even made it in a cylinder shape using 2 pieces of voile sheer material. Got the material from walmart for $4 and went to a sewing store and picked up the strongest thread I could get. They actually make a Kevlar thread that's used in fly tying... stuffs tough as hell. Anyway, I made my seams triple folded and double over stitched every seam. Took me about 30 minutes. It's a STOUT bag!

How much grain can it hold for mashing, and how much weight (wet grain) can it hold?
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Old 06-05-2014, 10:25 AM   #22
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I made my own bag.

Nice job making your bag! I have found that polyester thread works very well. Even a fine thread that does not appear that strong will work very well, as the voile is a very fine fabric, and fine fabric stitches well, and makes nice seams with fine thread. The key to a strong seam is many stitches rather than strong thread, run it through the machine several times folding the seam works very well! With a well stitched bag, the seam will likely be stronger than the fabric.

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How much grain can it hold for mashing, and how much weight (wet grain) can it hold?

My guess would be that bag would hold a couple hundred pounds, more grain than would ever fit in the pot.
http://www.homebrewtalk.com/f11/biab-polyester-voile-strength-test-384445/

If you have the skills and a sewing machine, making a bag is a nice little project.
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Old 06-07-2014, 05:52 PM   #23
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I get 87% efficiency with my new all grain single tier rig. I've heard of BIAB brewers getting between 60% - 75%. Perhaps this is one of the biggest differences. However.. if you don't care about efficiency.. BIAB
I've had as low as 68% efficiency with BIAB, but I didn't have my process dialed in at that point.

Yesterday, when I did a batch of cream ale, I hit 85%. Right after that, I got 81% on my pale ale. I double crushed my grains and with the cream ale, I mashed at 150 for 90 min. I had some temp control issues with the pale ale, but I kept it roughly between 150 & 154, also for 90 min.

I think if you can get a good process dialed in, you won't know the difference. And you save some money.
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Old 06-07-2014, 05:56 PM   #24
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You guys using the fancy BIAB bags, or paint bags? Those Blue Hawk 5 gal paint bags are the tits, but never done a BIAB in one.


/Will always still be figuring it out/
I still use paint strainer bags, but as mentioned before, yes they wear out fairly quickly.

Just based on everyone's recommendations here on HBT, I would go with wilserbrewer's bags. That will likely be my next investment.
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Old 06-07-2014, 11:21 PM   #25
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I get about 70% efficiency from my 3 tier all grain rig. I get about the same or a little better with BIAB, but I really prefer the 3 tier system. I don't like the hot, heavy, sticky, messy bag of grain that you get with BIAB.

For me the pain in the ARSE is with BIAB....

Hmmm... As he is hanging out in the BIAB forum..lol


Cheers!
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Old 06-08-2014, 01:27 AM   #26
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How much grain can it hold for mashing, and how much weight (wet grain) can it hold?
Granted this is a smaller bag. I only do 2.5 gallon half batches but it has held 6.5 pounds of grain (Dry weight) no Idea what the weight was wet, but it was ummm heavy. With the seam stitching that I did (folded the seams over twice and stitched them tight, then went back and over stitched the seams a second time) I firmly believe the material will rip before the seams break,
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Old 06-08-2014, 09:01 AM   #27
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Efficiency goes up with biab . I use less grain or more water. Efficiecis between 80-90.


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