Newbie BIAB brewdays

Discussion in 'Beer Brewdays!' started by Petegriffin, Sep 23, 2019.

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  1. Nov 11, 2019 #21

    An Ankoù

    An Ankoù

    An Ankoù

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    DOn'[t forget to put the other half of the Camden tablet in the sparge water (unless you do no-sparge, of course).
     
  2. Nov 11, 2019 #22

    dwhite60

    dwhite60

    dwhite60

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    Beer I brewed in October was my second BIAB. I was surprised when my efficiency came out to 85 percent.

    Thinking the October batch was a fluke I brewed again this past Saturday, similar recipe and process. Again I hit 85 percent. Had to dilute my batch to get the gravity I wanted so I've got more beer. clapa

    My mash / sparge process I normally got 70 to 72 percent efficiency.

    Are you crushing your own grain? Homebrew stores crush for traditional mash and sparge. You can crush extra fine with BIAB. I have my mill set at 0.7mm for BIAB. Finer grind will increase efficiency. Check your crush.

    Oats do get sticky as others said and can cause problems.

    All the Best,
    D. White
     
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  3. Nov 11, 2019 #23

    Petegriffin

    Petegriffin

    Petegriffin

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    Thanks Matt and others,

    I think you're right and it's just efficiency. I am curious what I can do to improve that however so thanks for the idea on the crush. I get it crushed by the shop (homebrewcompany.co.uk) so I'll ask what they suggest. I don't think I'm on the scale to by a mill yet and I'm a little paranoid about keeping grain stored due to the risk of mice in the garage.

    I'm expecting to be very happy with the 5% IPA, but I'm just keen to know what I'm going to get out and work on consistency. Matt's option 1 was what I initially thought to do, but it seems like my efficiency is very, very low so I would like to improve it if possible to open up the options for what I can brew.

    Interesting to hear the sparge make so much difference. I could quite easily add that step with another cheap boiler but I think I'd rather just move from BIAB if I need to spend on more vessels/gear. I guess I'd then need a longer boil to get the volume back down if I did opt for a dunk sparge?

    I'll focus on the bag squeeze next brew as I know I can get more out but wasn't sure it's making much difference at that point or if it's all just as sweet as the last few ml. The only experiment I can find on it uses a hoist to drip drain the bag as the comparison so if I can't do that instead I guess a solid squeeze is the way to go. To do this I've been using a clean plastic tub to drain the bag in and press down to squeeze, transferring the resulting wort into the boiler while it's heating up.

    Useful ideas as always, thanks all.
     
  4. Nov 12, 2019 #24

    dwhite60

    dwhite60

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    Sometimes running the grain through the mill twice makes it a little finer, enough to get higher efficiency.

    Would not surprise me some shops crush extra coarse so people have to buy more grain to hit their target gravity.

    All the Best,
    D. White
     

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