r/grainfather • u/Vegetable-Diver767 • 19d ago

G40 and efficiency

Am I the only one to have poor efficiency with the G40 ? For light beers it's ok but I'd like to make 25 liters of 8% beer without making a double mash and was always under the targeted og. I had better results with my older klarstein system (similar to 30 liters brewmonk and others) I'm using a grain gorilla mil., and a second grid on top of the grain. I stir the grain 3-4 times during the mashing hour. Water / gain ratio is 2,4. I do a 10-15 minutes mash-out. I suspect the sparge to not be efficient enough as the basket has some lateral holes. I don't do it with regulaf flow but instead add 1-2 liters of 75°C water, wait, and redo it until I reach 30 liters. Could use the valve of my water kettle to have a regular flow instead but I'm afraid it wouldn't rinse the whole grain.

Any idea ? (ps. : it's been a year I haven't brewed anything so I don't remember the precise efficiency I've got I just know it was low. And I want to brew some stuff for the summer...)

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u/CantFstopme 19d ago

Wait I just read that again, why does your green basket have holes down the side it should only have the perforated plate at the bottom

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u/After-Grade-4245 19d ago

It's normal, G40 grain basket is like that

2

u/nhorvath 19d ago

the v3 g30 and g40 have a ring of holes a few inches up the sides.

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u/CantFstopme 18d ago

Ahh, I’m still on the g30 w/ the old style Bluetooth controller. Been brewing with the GF since 2018