Mill gap Setting

[HausBrauerei_Harvey]

I just got a Monster mill 2 2.0! I need help figuring out the right gap setting for pale ale and pilsner malt (my next brew). My LHBS does a pretty coarse grind but I have them mill twice and I was getting ~80% efficiency doing batch sparging.

I would like to have a good gap setting so I can mill the grain just once and get in the 75-80% range for this next brew. Any suggested gap settings? I have no idea where to start with that other than blowing through a bunch of grain doing trial and error testing.

Cheers!
Steve

 

[LLBeanJ]

I'd go with about .032" and see how it goes.

 

[sandyeggoxj]

Use a credit card. Should be about .033".

 

[dk21]

You'll likely get a nice crush with the factory gap (.045"). Fred at Monster recommended .040" to me when I got mine, which I set mine to and I consistently get 78% efficiency with a double batch sparge. Your mileage may vary...you won't know on your setup until you brew a batch. I'm not sure that you'd want to go much finer than that, but some are into pulverizing their malt.

 

[m00ps]

yeah my grain mill came set on 0.032 and Ive never changed it. It may help with some special malts (Golden Naked Oats) to lessen it, but I dont bother since I like where its at now. Works great for all Barley Wheat and Rye malts.

 

[Black Island Brewer]

How fine you can go will depend on your system. Braids and manifolds, IIRC, need a courser crush, False bottoms can go finer, BIAB you can pulverize. I use a false bottom in a keggle and use .032, and when I tried .030, I got a stuck sparge. You can go finer still if you want to add rice hulls to your mash.

 

[sandyeggoxj]

I brew with a 30-gallon 3-vessel eherms system and fly sparge. I have a .034 setting on my mm2-2.0. I don't condition grain. Works just fine. I run high-70s to 81% eff on average across different beer styles and gravities(1.040 to 1.085). I drive the mill with a drill at approximately 200-250 rpm. I have the hardened rollers as well, if that makes any difference.

 

[HausBrauerei_Harvey]

thanks for the info guys. I do cooler mash tun with a stainless braid for the filter at the moment. Sounds like I should make sure it's set at .032" and run with it for batch one. Thanks!

 

[30Bones]

I am at 0.039 on my JSP on my cooler MT and go down to 0.032 when I do my small batch BIAB

 

[barnaclebob]

huh, my cereal killer is set to .027 measured with feeler gages. I use a bazooka tube and still don't get that great of efficiency, low 70's.

upon further review maybe it was .037, i'll have to check next time i get it out.

 

[beersk]

My barley crusher is set at .032" I believe. It's no higher than that.

 

[kujosp]

Just tested my MM2 out today at .029 gapped. Went from less then 60% efficiency from my LHBS to 87% efficiency on my batch sparge system. Looks like my gap is a bit tighter then everyone else's here.

 

[govner1]

My 3 roller MM is set at .031"

 

[mblanks2]

.029" on Crankenstein.

 

[doug293cz]

I do BIAB with a small pour over sparge (not full volume mash.) I set my Barley Crusher at 0.016" gap. On last two brews I got 89% & 84% mash/lauter efficiency.

Brew on