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Grain Mill Gap Size

  • Withers
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3 months 15 hours ago #2501 by Withers
Withers created the topic: Grain Mill Gap Size

i have recently bought a two roller grain mill (ebay special) with this in mind i was keen on knowing what everybody had their gap set at as i have read a lot of conflicting reviews (Credit cards, Guitar pick).

i am using the new Robobrew with built in pump and my last brew house efficiency was 55% ish as opposed to when i had grains milled at the brew shop where i had 82% ish.


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  • Gash
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3 months 3 hours ago #2502 by Gash
Gash replied the topic: Grain Mill Gap Size
G'day Wayne, it is hard to give a definitive answer most will say about a credit card thickness, Im a baas player my picks would probably be ok too, the real answer it to look at your grain closely. I had mine set and it worked great for my pale/ale malts and crystal malts, but then when I added wheat and rye to some of my brews I lost eff and had to make the gap smaller. Running it all through mixed can be a bit of a stab in the dark so inspect what grains you are going to use, choose what looks like the smallest and adjust the mill so it cracks all the grain, then check it with some base malt just to make sure you havent gone too small and will pulverise everything. If you are a little worried grab some rice hulls and throw a handful or two into the milled grain while mashing in, just in case you've gone a little fine.

So basically grab some grain and have a muck around until you find its right for you and the grain you are using, you'll find once set you'll unlikely have to adjust again unless you get some thing very small.

Cheers mate!

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Drunken Ramblings

Finnroo's Avatar Finnroo - Thu 21 Sep - 13:55

Wigram Brewery APA in the glass, Thin Lizzy on the platter. It does nt get any better, Cheers all lol

Gash's Avatar Gash - Thu 21 Sep - 07:52

That sounds sensational!

Finnroo's Avatar Finnroo - Wed 20 Sep - 12:02

Enjoying a wigram brewery Harvard Honey Ale. Outstanding with a bit of Savatage streets on the platter. Cheers, out there brewing it. lol

Finnroo's Avatar Finnroo - Mon 18 Sep - 19:29

Bottling day tomorrow, should be good :D

Beef's Avatar Beef - Sat 16 Sep - 13:53

Hey Gash, got a quick question, was thinking about putting 2 All INN citra wort kits in the fermentersaurus, 30L, Then after ferment, adding the 5L cooled boiled water with priming Dex to each keg and filling, What do you think?

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