[BairsBrewing]

I have a cereal crusher mill and have never used it before, any suggestions on a good gap setting to start off with?

[Stevie]

Start with the stock gap and adjust from there. I set my MM2 to .35 recently and like my results.

[Frankenbrew]

I have a cereal crusher mill and have never used it before, any suggestions on a good gap setting to start off with?

I recently purchased a JSP Malt Mill with a pre-set gap of .040. First brew with it was a Kolsch (1.050 ish) and I got quick lautering and almost 80% efficiency. I was very pleased.

[ynotbrusum]

I, too, have the JSP Malt Mill and tighten it up just a 5 degree turn on both sides.  I haven't gapped it with a measuring device, but I am guessing it's about .038 or so.  I tried tighter and my cordless couldn't turn the rollers well enough and my sparges got stuck, so I backed it off to that point eventually and now enjoy very good efficiencies and no stuck sparges.

[TMX]

Well there are a few things to consider when setting your gap.

First, what type of brewing to you do? Typical all grain / BIAB ??
Second, if typical all grain, do you use a false bottom, manifold, or SS braid?

That being said, IIRC the default gap is approx 0.50, and I wold start from there, you might fall into the if it aint broke don't fix it category.

Before you crush anything, make sure you get a good gap measurement, and if you adjust, I would suggest dropping only 0.02 between batches.

Brew a batch, see what your efficiency numbers look like, also pay attention to your run off speed and how well your lautering goes.

If you BIAB or have a SS braid, you might be able to get away with starting in the 0.40 gap range.

In all cases, crush slow, it will keep the husk intact better.

[bengelbrau]

I was once given some advice on how tight a spark plug should be when replacing it. My mentor said I should crank down on it until it breaks, than back off a tad. When I set my gap, I took it to below .030, and the hulls were too fine to allow a good lauter. I'm now at .032, and draining just fine.

[BairsBrewing]

Well there are a few things to consider when setting your gap.

First, what type of brewing to you do? Typical all grain / BIAB ??
Second, if typical all grain, do you use a false bottom, manifold, or SS braid?

That being said, IIRC the default gap is approx 0.50, and I wold start from there, you might fall into the if it aint broke don't fix it category.

Before you crush anything, make sure you get a good gap measurement, and if you adjust, I would suggest dropping only 0.02 between batches.

Brew a batch, see what your efficiency numbers look like, also pay attention to your run off speed and how well your lautering goes.

If you BIAB or have a SS braid, you might be able to get away with starting in the 0.40 gap range.

In all cases, crush slow, it will keep the husk intact better.

I only do all grain, have a false bottom, and RIMMS system.  I have feeler gauges, best thing I ever bought when I was 16, and set the gap on both sides to .040. Crushed some brown rice and was happy with the results.  Maybe I will stop at my LHBS and get a pound of 2-row to test before brew day.

[pete b]

I don't measure the gap, just played around with it until I got it right for me. I don't find that every malt mills exactly the same so I'm likely to adjust it per batch anyway. I just grind a little, look at it, and adjust if necessary. When I do biab I go quite a bit finer than with my batch sparge set up which is a cylindrical cooler with false bottom.

[Slowbrew]

This thread just reminded me that I haven't set the gap on my barley crusher since I got it back after a rebuild.  That would probably explain my efficiency drop.  I had been getting .004 to .008 higher OG readings before the rebuild.

I usually run my mill around .038" and get good results (won't quote %s since I never bother with the math).

Now to go find my feeler gauges.   

Paul

[TMX]

This thread just reminded me that I haven't set the gap on my barley crusher since I got it back after a rebuild.  That would probably explain my efficiency drop.  I had been getting .004 to .008 higher OG readings before the rebuild.

I usually run my mill around .038" and get good results (won't quote %s since I never bother with the math).

Now to go find my feeler gauges.   

Paul

I am in the same boat as well, going to start at 0.45 I think and see what gives from there

[Pinski]

.039 works very well for me.

[erockrph]

I use a 0.88mm guitar pick to set my gap (which = 0.035"). It works great for BIAB.

[Wort-H.O.G.]

I use a 0.88mm guitar pick to set my gap (which = 0.035"). It works great for BIAB.

that's awesome multipurpose ingenuity there Eric.

[Stevie]

I used my Costco card for the first day. I think that was .040

[pete b]

I use a 0.88mm guitar pick to set my gap (which = 0.035"). It works great for BIAB.

I play air guitar with the air from the gap between the rollers of my mill.