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I recently purchased a Crankandstein 2S grain mill. It is currently being "assembled" and I am considering making some silly beers with grains around the house; like corn and sorghum.

Can corn damage a grain mill? The mill looks really strong, but I would rather make sure beforehand.

How can I test if a grain might damage a mill?

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Ask the manufacturer or supplier you purchased it from. Then if it has problems, you can rely on the warranty – jalynn2 Jun 19 '14 at 17:07
up vote 2 down vote accepted

I would doubt it - the mill is made of steel, which I imagine is orders of magnitude more robust than any cereal you put through it. But if in doubt contact the manufacturer to be sure.

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The manufacturer replied that the mill will not be damaged, but that high water content may cause the rollers to get gummed up. – Atron Seige Jun 29 '14 at 10:42

My attempt with my father-in-law's corn proved that the mill was incapable of damaging the corn. I think it was probably due to the gap being too narrow.

You may need to adjust your mill to crush the corn. Also realize that a mill meant for brewing isn't going to make cornmeal or flour, but crushed/cracked grain.

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