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Home Brew Forums > Home Brewing Beer > All Grain & Partial Mash Brewing > Squeezing a biab bag with an apple press
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Old 09-06-2012, 09:59 PM   #1
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Default Squeezing a biab bag with an apple press

Has anyone attempted to squeeze a grain bag with a cider press? The most laborious portion of my brew day is squeezing the bag. If it can work, using a press seems much more efficient. Thanks.

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Old 09-07-2012, 03:08 AM   #2
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You really do not want to squeeze thebag out at all, just sit it in a strainer over a bowl. Squeezing the bag can relase tanins into your wort causing off flavors. Iave never tested the theory, I just don't do it from what I have read.

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Old 09-07-2012, 05:36 AM   #3
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Ok...go ahead and squeeze all you want...but getting out a apple press for 12 oz of beer. I simply let the bag hang over the kettle to drain for ten minutes or so w/ an accasional squeeze...sure ther might be something left, but really, at 60 cents a lb for grain, maybe 20 cents left...IDK???

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Old 09-07-2012, 05:46 AM   #4
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I just move the bag over and let it hang into a bucket while I start heating up the wort in the boil kettle. Usually by the time the wort is boiling, I have another quart or so of wort to add to the boil. I pour that in, and put it back under the bag for a while, but not much else comes out after that.

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Old 09-07-2012, 06:37 AM   #5
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I've squeezed before, with no adverse effects (noticed by me), but to go to that extreme, like others have said, I wouldn't think worth the risk for so little benefit.

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Old 09-07-2012, 11:02 AM   #6
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squeezing will NOT allow tannins into wort TEMP will..........let it begin.....

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Old 09-07-2012, 11:41 AM   #7
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squeezing will NOT allow tannins into wort TEMP will..........let it begin.....
+1. I squeeze the bag until my hands blister. Of course I have soft girly hands...
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Old 09-07-2012, 12:28 PM   #8
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Quote:
Originally Posted by deepcdan99 View Post
You really do not want to squeeze thebag out at all, just sit it in a strainer over a bowl. Squeezing the bag can relase tanins into your wort causing off flavors. Iave never tested the theory, I just don't do it from what I have read.
No, squeezing will not release tannins. It takes a combination of high pH and high temperatures to do that with pH being the deciding factor. If your pH is low, you can boil the grains in the wort without extracting tannins (see decoction brewing).
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Old 09-07-2012, 01:19 PM   #9
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Quote:
Originally Posted by sfrisby View Post
Has anyone attempted to squeeze a grain bag with a cider press? The most laborious portion of my brew day is squeezing the bag. If it can work, using a press seems much more efficient. Thanks.
How much work is it to get the bag into the apple press, and collect the runnings and pour them back in?
If its not a big deal, then go for it.
The only concern I would have is you might put a lot of stress on a corner of the bag and eventually weaken (enlarge the stitching) and burst it.

Letting the bag hang and drain will recover a fair amount of trapped wort.
Squeezing will get out a smaller quantity of very high gravity wort.

With a higher gravity beer (i.e. larger grain bill), I will do a sparge. (Drain and squeeze the bag) then soak it in a smaller pot of hot water for 5 minutes, then drain and squeeze.
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Old 09-07-2012, 11:30 PM   #10
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OMG! Don't squeeze the bag your beer will get HIV!

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