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Old 02-25-2009, 01:38 AM   #111
nghtmre4u
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Tried mine the first time today.I ran a few hand fulls thru checking and got it where it looked better then my lhbs.
So i hooked up my drill and went thru the grain bill it looked pretty good better then the lhbs so i started my brew day.
Well I hit my temps just right and at the end of a smooth brewday my eff was only a 63% up 2% from lhbs.
I have gotten 75-78% with northern brewers crush but only like 60 at my lhbs.

Will the speed of the drill effect the crush i used a old drill that cant control the speed maybe a little to fast or schould I adjust the mill?
I am gonna try another batch tommorow hoping to get my eff up to 70-75 and I'll be happy.I know it will still be beer at 63% and still taste good just a little on the weaker side.

 
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Old 02-25-2009, 01:49 AM   #112
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Over the next few brews, keep reducing the plate gap until you hit a point where you have trouble lautering (it's not a bad idea to have some rice hulls hanging around in case you go too far ). Once you hit that point back it off slightly. You should get far better efficiency than 63%. If you can get mid 70's with the NB crush, there's no reason your system can't get that [and higher] with the corona.
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Old 02-25-2009, 01:51 AM   #113
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Thanks for answering Brad....I'm still waay to nooby to be able to handle any questions about this...I still haven't dialed mine in completely yet....

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Old 02-25-2009, 02:00 AM   #114
nghtmre4u
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Thanks for the reply's.Gonna try another brew tomorrow or Thursday. I will adjust it and see how it goes and then I'll post some pics of my station.

 
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Old 02-25-2009, 04:44 AM   #115
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Good method Brad.

On my last batch I made some "improvements" to my corona mill. I finally got around to cutting a hole in the base for the milled grain to fall through. Then I built a hopper out of cardboard and masking tape to funnel it through the hole.

In the process I must have knocked the plates out of range a bit. My efficiency dropped 5 points.

That part was disappointing but the grinding itself was fun. Took less than 5 minutes for 14 lbs.
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Old 02-25-2009, 04:47 AM   #116
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Quote:
Originally Posted by dontman View Post
...Then I built a hopper out of cardboard and masking tape to funnel it through the hole...
You can't tell us that and not post a picture.
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Old 02-25-2009, 05:02 AM   #117
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Quote:
Originally Posted by bradsul View Post
You can't tell us that and not post a picture.
I would, but I'm kind of embarrassed. My junk is too ugly even for this thread.
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Old 02-25-2009, 05:31 PM   #118
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Quote:
Originally Posted by bradsul View Post
Over the next few brews, keep reducing the plate gap until you hit a point where you have trouble lautering (it's not a bad idea to have some rice hulls hanging around in case you go too far ). Once you hit that point back it off slightly. You should get far better efficiency than 63%. If you can get mid 70's with the NB crush, there's no reason your system can't get that [and higher] with the corona.
I had another thought about this method of tuning in. When I was tuning in I always thought "that must be TOO fine" and then when I lautered it did just fine. I actually never went to the point where it got stuck. I just took it to the point where my efficiency was reliably and predictably at between 80 and 82%. The point is that I think grinds can go a lot finer than most LHBS' go with theirs with no ill effects.

I figure that any points I add at this point have to be weighed against the greater risk of shredding the hulls too fine and the problems that might create versus saving maybe $.50 total on my grain bill.
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Old 02-25-2009, 05:42 PM   #119
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Quote:
Originally Posted by dontman View Post
I had another thought about this method of tuning in. When I was tuning in I always thought "that must be TOO fine" and then when I lautered it did just fine. I actually never went to the point where it got stuck. I just took it to the point where my efficiency was reliably and predictably at between 80 and 82%. The point is that I think grinds can go a lot finer than most LHBS' go with theirs with no ill effects.

I figure that any points I add at this point have to be weighed against the greater risk of shredding the hulls too fine and the problems that might create versus saving maybe $.50 total on my grain bill.
'Crush until you're scared' is the motto I used when I was dialing it in. It is definitely dependent upon the individual system how fine you can go though. I was able to get upwards of 89% on my system by the time I had to stop. No issues with tannins or anything either since that is affected far more by water temperature and pH.
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Old 02-25-2009, 06:01 PM   #120
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Quote:
Originally Posted by bradsul View Post
'Crush until you're scared' is the motto I used when I was dialing it in. It is definitely dependent upon the individual system how fine you can go though. I was able to get upwards of 89% on my system by the time I had to stop. No issues with tannins or anything either since that is affected far more by water temperature and pH.

I like the quote. It is a good motto to grind by. +1 to me never worrying about tannins either. This is another one of those bugaboos that is easily avoided by not oversparging.

I hit 87% once. Expecting 75%. I had to scramble to adjust hops on the fly. Since then I have just settled into my easy to duplicate 80% rhythm.
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