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Efficiency issue

npg

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Feb 11, 2014
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There are numerous factors that could be at play here.

[list type=decimal]
[*]mill:  this has been covered already.  you may want to try it with already crushed grain - just to make sure and eliminate causes.
[*]quality of the grain:  if your grain wasn't stored correctly it will lose diastatic power rapidly
[*]mash schedule:  not your strike but your actual target temperature should really be 65 Celsius.  You can do other things to affect conversion efficiency.  Ie step mashing.  Dough in with a thick ratio (1:2) at 35Celsius, then raise to 65Celsius after 15-30 minutes.  You could also take 1/3 of the grain and boil it for 5-10 minutes.  This will certainly release more starches and improve your efficiency.
[*]sparging:  incorrect sparging can lead to huge efficiency losses.  it is important not to create too much suction and compress the grain bed too much.  this will have huge impacts on efficiency.  try a lower flow-rate if necessary
[*]pH:  pH can have a far more dramatic effect on the end-result than temperature.  Ensure your mash is in the pH 5.3-5.6 range.
[/list]

Hope this helps ;)
 

Gwion

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Dec 20, 2014
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cheers. I'll look at those things for next time. Much appreciated.

PS[edit]: After the boil and into the fermenter/s OG=1038
 
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