Malt - this is really the most likely answer. Put the BM in Manual mode, put around 10L of water in it and set it to say 65oC and leave it running for half an hour or so with the pumps on and check the temperature (given you have a reliable thermometer). Temperature - the sensor can fail and mashing at radically different temperatures can lead to some strange results. Low efficiency in a Braumeister can really only be down to two factors
#BEERSMITH GRAIN ABSORPTION HOW TO#
If you guys have any tips on how to fix this, it would be great.Īpart from the very strange Grain Absorption figures (fl/oz FFS), 0.96L of water absorbed by 1kg of grain is pretty standard (can vary a bit depends on how long it sits to drain, gets pressed/squeezed.) I use the BacBrewing Increase disk so maybe the pump isn't powerful enough to flow wort through the grain to the top? On my next batch I'll check what the temp of the wort is on top of the malt pipe. Is the high grain absorption because my crush is too fine or coarse? And I do a iodine conversion test. I crush grain at 1mm or 1.2mm with a MashMaster Mini. This allows 24 x 750ml bottles = 18L (batch volume) without picking up much trub etc. I use 27L post boil because of losses to fill two 10L fermenters. So post-brew, my actual BIAB Grain Absorb is 0.8534 fl/oz and not 0.5860 fl/oz.įor boiling, my actual evaporation rate was 6.1% (not 13%) with only 1.89L evaporation per hour (not 4L). On my last brew, Beersmith calculated the following pre-brew: I'm using a Brewhouse Efficiency of 68% at the moment but the last brew was 66.3%. I'm consistently 10 points lower than I should be (e.g. I'm trying to nail down an efficiency problem from the last five or so brews.
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