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Old 03-18-2013, 01:12 PM   #1471
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I finally went out and looked for myself. Here is a link to how tannins get extracted.
I guess with BIAB we don't have to worry about the ph so much since we don't sparge and we really don't have to do a mash out either so even temperature isn't an issue.

I reckon I will go with the Victory or Corona mill.

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Old 03-18-2013, 05:38 PM   #1472
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I think I saw something about doing a mash out at 170F with BIAB due to increased efficiency (I think). Are you saying I shouldn't raise the temp for a mash out for 10 mins?

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Old 03-18-2013, 10:30 PM   #1473
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Just did a high gravity beer with this method. 18 lbs of grains and hit 75% efficiency (1.080 OG at 6 gallons). It was still a bit of a rough day lifting and squeezing that bag even with a deck overhead to run a rope.

The only problem was that my boil off rate wasn't as high as much as i suspected so I ended up with 6 gallons instead of 5.5. The end result is my OG was a bit low but my efficiency was at 75%. So yes it is possible to do a higher gravity brew just be prepared fora little extra work.

My next high gravity beer will be a Barley Wine attempt....may have to invite some friends over to help with that and refine my hoist system as well.

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Old 03-18-2013, 10:36 PM   #1474
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I think I saw something about doing a mash out at 170F with BIAB due to increased efficiency (I think). Are you saying I shouldn't raise the temp for a mash out for 10 mins?

some say that a mashout increases efficiency, others say it doesn't make a difference. Raise teh temp for a mashout and don't worry about it. the temp increase is a VERY VERY small factor in extracting tannins. PH is the main cause of tannin extraction and not a worry in BIAB
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Old 03-18-2013, 11:42 PM   #1475
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Originally Posted by MikeyLXT View Post
Just did a high gravity beer with this method. 18 lbs of grains and hit 75% efficiency (1.080 OG at 6 gallons). It was still a bit of a rough day lifting and squeezing that bag even with a deck overhead to run a rope.

The only problem was that my boil off rate wasn't as high as much as i suspected so I ended up with 6 gallons instead of 5.5. The end result is my OG was a bit low but my efficiency was at 75%. So yes it is possible to do a higher gravity brew just be prepared fora little extra work.

My next high gravity beer will be a Barley Wine attempt....may have to invite some friends over to help with that and refine my hoist system as well.
I have some of these for when I go BIAB.
Dual Rope Pulley
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Old 03-19-2013, 01:52 AM   #1476
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Originally Posted by MikeyLXT View Post
Just did a high gravity beer with this method. 18 lbs of grains and hit 75% efficiency (1.080 OG at 6 gallons). It was still a bit of a rough day lifting and squeezing that bag even with a deck overhead to run a rope.

The only problem was that my boil off rate wasn't as high as much as i suspected so I ended up with 6 gallons instead of 5.5. The end result is my OG was a bit low but my efficiency was at 75%. So yes it is possible to do a higher gravity brew just be prepared fora little extra work.

My next high gravity beer will be a Barley Wine attempt....may have to invite some friends over to help with that and refine my hoist system as well.
Can you explain how you connected the rope to the bag? Did you use a voile bag?

I'm doing my first BIAB this weekend. A 17 lbs stout. Not sure the best way to attach the bag to the rope. I haven't settled on my method yet. Maybe string it over my aluminum latter. Maybe hold it over the kettle for a bit and then put it over my oven rack.

I plan on doing a practice run (not using the actual grains) when my bag is done this week.

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some say that a mashout increases efficiency, others say it doesn't make a difference. Raise teh temp for a mashout and don't worry about it. the temp increase is a VERY VERY small factor in extracting tannins. PH is the main cause of tannin extraction and not a worry in BIAB
Thanks much!
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Old 03-19-2013, 01:40 PM   #1477
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I got a block and tackle off of ebay and that seemed to be overkill until I got a single ratcheting pulley from Home Depot and realized that required too much work so I went back to the block and tackle.
I attach the rope to the bag by just gathering the top of the bag and tying a clove hitch around it down from the top a little bit.
I just use a big piece of voile, not even a bag. That way there are no seams to worry about. I may go to a real bag when this wears out.

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Old 03-19-2013, 02:29 PM   #1478
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Looks like I need to learn how to tie some knots I saw someone use a noose too. I was worried that the bag would slip out of whatever knot I made, but I guess that isn't a problem as there is enough friction in the material maybe??

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Old 03-19-2013, 03:56 PM   #1479
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Looks like I need to learn how to tie some knots I saw someone use a noose too. I was worried that the bag would slip out of whatever knot I made, but I guess that isn't a problem as there is enough friction in the material maybe??

It is not nearly as difficult as you might imagine, all you need to is wrap a cord tight several times around the gathered bag and tie tightly.

here is 120 lbs held in a bag just gathered and tied with a strap wrapped around several times and tied.

http://www.homebrewtalk.com/f11/biab...h-test-384445/
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Old 03-19-2013, 04:10 PM   #1480
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It is not nearly as difficult as you might imagine, all you need to is wrap a cord tight several times around the gathered bag and tie tightly.

here is 120 lbs held in a bag just gathered and tied with a strap wrapped around several times and tied.

http://www.homebrewtalk.com/f11/biab...h-test-384445/
Thanks for the video and I had seen your strength test. Much appreciated.
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