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Grain Gobbler Homebrew Grain Mill (4 Inch)
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A fully adjustable grain mill at an affordable price! Specifically designed with the best features, after years of careful research and use of nearly every mill on the market.
This grain mill features two knurled 1.5" diameter x 4" long rollers that rotate in self-lubricated bronze bushings for smooth operation. They are easily adjusted on both ends providing an even gap across the entire span of the rollers. There are 10 pre-set adjustment settings for you to choose from. Comes standard with a drill adapter as we find most people wish to use a drill to drive the mill. Using a drill, the output is 4 lbs per minute at 400 rpm, faster on higher speeds. The included hopper is a 1 gallon plastic jar that will hold 3 lbs of grain. It has a great clamping bucket attachment with a crossbar to hold on to. High quality construction for a unit at this price with free shipping.
Another version with stainless steel grain chute is available that holds 8 lbs (MILL475).
California Recipients: See Proposition 65 Information
Item # MILL400
Shipping Eligible for Free Shipping Program
Availability Out Of Stock
Weight 5LBS
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2.3 / 5.0
13 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Stars
I have had nothing but great results. The only time my rollers stop is if I let the crushed grain build up inside my bucket. As long as you keep space between the bottom of the grain crusher and the pile of crushed grain you should not have a problem.

Crushed about 400 lbs so far with no issue.
August 11, 2014
Not reliable
I bought a new mill because this model is so inconsistent, I would suggest morebeer into carrying a better model to sell
May 1, 2014
Needs work
You will need to do some slight modifying and maintenance to get it working decently. You will need to do some serious modification to make this mill reliable. The exact problem is the passive roller just will not function properly in it's current state. If you are handy this product can be made to work, otherwise more than two pounds of grain is too big a headache to deal with.
May 1, 2014
Works at Room Temperature
This mill worked great for milling small amounts of grain when the grain mill was at room temperature or warmer. When milling 30 lbs for a larger beer in a cold ~40F garage the mill seizes up and chaos ensues. I've moved on to another mill, but it does the job of milling smaller quantities of grain when used at normal human temperatures.
August 20, 2013
Great crusher
Excellent grain mill. Once again the reviews don't give this product the credit it deserves. It will take some time adjusting the rollers to work, but once they are adjusted and broke in, this will crush grain amazingly. We crush 50 lbs in 15 minutes with just a crummy $10 drill. No speed settings on the drill either.

As for the idle roller, all mills have an idle roller unless it uses a gear train which will bring the cost above $1000. Not worth it. Be smarter than the mill. If the roller gets stuck, spin the bolt for idle roller with your fingers (carefully, and don't put your fingers in the roller) slightly and it will catch on the grains. After this happens once, it won't happen again while the mill is going. Just keep feeding the hopper and hold down on the drill. If your mill gets stuck and you can't spin the idle roller, you have it set too fine. Back the roller out.

Lastly, since we experienced this, be careful when using smaller grains like Rye as opposed to 2-row. You will want to adjust the rollers in to crush the rye properly, BUT DON'T. Rather run the Rye through the mill twice because if you adjust the rollers in, the smaller Rye grains will line the space in-between the two rollers and seize your drill and mill. This is because the smaller grains are harder to crush due to their smaller size and how more grains will line the space in between the two rollers requiring more force to crush.

Excellent product! Rips through 50 lb bags of 2-row like nothing!
May 31, 2013
OK so far
Having only run 5 20lb batches through so far, I haven't experienced any problems with the passive roller freezing. As for mounting, the mount works just fine. I permanently fixed this mill to a portable workbench in the grage and haven't had any issues...yet.
May 30, 2013
could be better, but still works well.
I concur with most of the gripes on the other reviews. I have found the speed of the motor is crucial to keep the non-driven roller from stopping. If I let the motor spin too fast, the non-drive roller will stop spinning every time. If I keep the speed low, it works like a charm. I've also found it helps if I blow it out with compressed air after every use.

The machine work on the metal parts is great, but the final execution is kind of cheesy. The flimsy plastic cover is flimsy, and the half-hazardly placed low-budget hardware seems a bit half-hazard and low budget.

These are nits I'm picking; bottom line, it does a great job crushing the grain exactly how I need it every time.

I would recommend it to a friend with the warnings stated above.
May 29, 2013
Not MB's best product
This one is not more beers best product. My first one was not machined correctly correctly so the second roller did not spin. The next one they sent me worked great for 3 batches then second roler stopped again. This one was bad do to the flimsy [plastic side do not keep the mill square so if the holes in the wood base arn't perfect the mill does not stay square the the rollers rub. Would not recomment
May 9, 2013
It works ok, no more than that.
At the beggining it was working fine... then, started to get sticky and the rollers don't seem to work together.
Many times it happened to just dump unmilled grains into the milled ones... Don't buy it.
May 6, 2013
Lots of problems
Had a lot of problems with the original one we got, especially with screws coming out. Once that would happen it was a mad rush to find the spring and tiny ball for the locking. We sent it back and after some minor hassle got a new one, but going through 20lbs of grain usually results in 4-5 times where it stops crushing and I have to reverse and then try again. The hopper needed be modified as it seemed made to spill grain everywhere. And the lack of gap settings is frustrating. There are much better mills out there.
May 2, 2013