Recent content by mdarby

Google is your friend: http://www.beersmith.com/batch_sparging.htm

You'll find out in a five weeks! :) I bet it will be fine.

What recipe did you use? Only using 10lbs of base malt with no specialty grains (or wheat) seems quite odd. Most Hefe's are 50% malt/wheat.

Yep, the passive roller turns freely if I manually turn it. I've disassembled, cleaned, lubricated and reassembled. No love. It has to be the old-school linear knurl on the rollers. This mill is one of the first JSP manufactured based on my research.

How was your crush? It should look like this: http://www.lootcorp.com/wp-content/uploads/2008/06/crushed-grain.jpg I screwed my first crush up and only hit 50% efficiency. Your process sounds about right to me.

Non-adjustable mill my friend.

Interesting: http://www.brewboard.com/index.php?showtopic=113612 This is the exact MM I have -- it appears to be one of the first JSP manufactured! The end plates appear to be cast with raised initials, and the rollers have a linear knurl (not diamond). Looks like Jack will reknurl for a...

Perhaps the issue is that I have the "old style" knurled rollers? http://www.craftkb.com/Uwe/Forum.aspx/brewing/6969/JSP-MaltMill-O-Ring My rollers have long, unbroken grooves from end to end. Others I've seen have a diamond plate type groove system.

Here's a video of the mill in action:

Perhaps something is wrong with my mill. I know that I'm not alone as I've seen several other people with the same issue in various message boards. The driven roller spins, the grain rolls, and the passive roller doesn't flinch. I have a 0.05" gap (checked with a feeler gauge). I've cleaned...

Gave that a whirl with not much luck. I emailed Jack of JSP and hopefully he has some ideas.

I bought a non-adjustable JSP malt mill off of eBay awhile back. The first thing I noticed was that both rollers have a gasket around them. It doesn't change the (0.05) spacing, and I assume it's only to engage the passive roller. I've mechanized the mill with a 10A drill which powers it nicely...

You're right. I remember reading that somewhere before but it got lost in the shuffle. Thanks for the reminder.

Yep, I was screwed from the get go :) Ran my numbers through the formula and it seems that I did get horrible efficiency. 35% sucks. Thanks for your help guys, my second AG batch will be much better thanks to you.

It's a 5G batch. The OG I gave was taken at 140 degrees, but then corrected as per BrewPal's hydrometer calculator. It does seem to be the crush/efficiency that was wrong (as the strike/sparge process you listed is in fact what I did). The yeast strain is WLP300.