After reading some posts about it, here's what I can tell. Sorry for this as not been tested on my side, apart sparging & squeezing. What do you think. Are these number rights?
Possible efficiency boost numbers
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Edit 1 : added mashing-out to the list.
Edit 2 : added Stirring the mash to the list.
Possible efficiency boost numbers
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- Double crush : 10-20% boost
- 90 min mash : small to very little difference
- Sparging (about the same vol. as the mash) : 5-10% boost
- Squeezing : 1-5% boost
- Mashout to 170° : 1-5% boost
- Stirring the mash : small to very little difference
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Edit 1 : added mashing-out to the list.
Edit 2 : added Stirring the mash to the list.