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  1. #151

    Quote Originally Posted by JIGSAW View Post
    But that doesn't tell you how good your new piece of equipment that was made specifically for the mash has improved your efficiency. You can take volume measurements and SG readings after the boil (into fermenter) and that reading could end up being better yes, but who says that isn't related to something other than the new mash bucket .... like a slower boil will give you more volume etc, etc.

    You need the Mash Efficiency numbers after the mash to determine if you're now getting better or worst sugar extraction with this new bucket, because if the numbers are way lower, you're definitely NOT gonna keep on using it, even if its easier and faster
    The other part of taking readings in the mash is that you dont always need to go the full time, if you reach your efficiency then its on to boil at that point.
    Unless of course you want to try squeeze every bit of possible efficiency out of the system.

  2. #152
    So,

    As it turns out the bucket isn't great at high efficiency. With a small re-circulation pump I got about 60% mash efficiency at best. Not sure if the grains compacted too much at the bottom or not I didn't have any overflow issues. I'm going to keep at it, I'm NOT going back a bag.

    Any ideas?


    Also, the Caterpride's thermostat decided to suddenly start working after about 4 months and approx 14 brews. Bypassed and sorted now.

  3. #153
    What about:
    Grain crush too coarse?
    Older grains?
    Correct grain bill(ie correct amount)?
    Mash PH?
    perhaps you accidentally added more water than you were supposed too?

    I've not gotten less than 60% with my BIAB, so unless there was some mistake, I'm sure you should get more than 60% using a pump and "malt pipe".

  4. #154
    Same grain crush from same supplier.
    Grain bill was fairly standard
    I use the same amount of water each brew currently

    Beginning to wonder if the hydrometer is poked maybe (unlikely)

  5. #155
    Quote Originally Posted by BackOffMyBrew View Post
    Same grain crush from same supplier.
    Grain bill was fairly standard
    I use the same amount of water each brew currently

    Beginning to wonder if the hydrometer is poked maybe (unlikely)
    I may be captain obvious here, but did you temp correct when you measured? They're normally calibrated for 20 so if your sample's temp was a bit high, you'd get a lower SG measurement.

  6. #156
    Or maybe temp was off and you killed all the enzymes with a 75C mash?


    Went back and checked your bucket pic. That thing looks good so should not be doing that to your mash

    Sent from my SM-A515F using Tapatalk

  7. #157
    Mashing in a bucket with holes or in a bag or in a cooler box shouldn't affect the efficiency that much. It's how you do it - the secret is in temperature accuracy (not too high .. or too low) and certain procedures like stirring the mash once in a while and not sparging with too much water.

    Read these links:
    http://howtobrew.com/book/section-3/...i-rest-mashing

    or even better explained here:
    https://grainfather.com/step-mashing...d-why-do-it-2/

    I mash in a 50 litre Coleman Cooler box with no circulation .. and I get 75% on average - sometimes 80% when stirring a lot and mashing for 2hrs. Your setup should at least match this.

    Another issue I just though of is .. when you sparge, don't let the water run down the side of the bucket too much, water will drain between the side wall and outer layers of the grain - leaving lots of sugars behind.

  8. #158
    Quote Originally Posted by jannieverjaar View Post
    Or maybe temp was off and you killed all the enzymes with a 75C mash?


    Went back and checked your bucket pic. That thing looks good so should not be doing that to your mash

    Sent from my SM-A515F using Tapatalk
    Mashed in at 71C according to the STC1000

    - - - Updated - - -

    Quote Originally Posted by CaPunT View Post
    I may be captain obvious here, but did you temp correct when you measured? They're normally calibrated for 20 so if your sample's temp was a bit high, you'd get a lower SG measurement.
    Sampled at 25 and corrected on the App

  9. #159
    Quote Originally Posted by AlexBrew View Post
    Mashing in a bucket with holes or in a bag or in a cooler box shouldn't affect the efficiency that much. It's how you do it - the secret is in temperature accuracy (not too high .. or too low) and certain procedures like stirring the mash once in a while and not sparging with too much water.

    Read these links:
    http://howtobrew.com/book/section-3/...i-rest-mashing

    or even better explained here:
    https://grainfather.com/step-mashing...d-why-do-it-2/

    I mash in a 50 litre Coleman Cooler box with no circulation .. and I get 75% on average - sometimes 80% when stirring a lot and mashing for 2hrs. Your setup should at least match this.

    Another issue I just though of is .. when you sparge, don't let the water run down the side of the bucket too much, water will drain between the side wall and outer layers of the grain - leaving lots of sugars behind.
    I pretty much sparge over the center, drizzling over the back of a spoon, and stirred a good few times.

  10. #160
    Senior Member JIGSAW's Avatar
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    Quote Originally Posted by BackOffMyBrew View Post
    So,

    As it turns out the bucket isn't great at high efficiency. <snip>
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