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Topic: Behmor Profile Monkey Blend (21 lines)
1) From: Jim Wilson
On 10/26/08, dan > wrote:
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~~~~I have about 50 roasts logged with the Behmor.  I roast beans to grind in a used Ranchilio MD-50 then pull double shots in a PID'd and tuned (8.5 bars @ the group) Gaggia Classic.  I'm the first to admit I'm more of an espresso common sewer rather than a connisseur due to my fondness for frothed milk in the drink.  And having said that, I pull ristretto shots @ about 1 ounce (from a double) so grind to end up there.  I also like my beans finished on the dark side and take them up to Vienna quite regularly (all the time).  Sorry, but I'm stuck in a rut and finished making apologies= : - )
The setting I find that works for me, I'll weigh 12 ounces of beans, drop em in the drum, set the roaster up to go and use the 1/P3/C profile.  I'm never very far from the roaster while it's running but I make sure I'm right there watching it w/4 minutes left on the roast.  More often than not @ 4 minutes on the end the roast is in 1st crack and I get to hear watch it go into 2nd crack, but at this roast profile I find there is distinct quiet time between 1st and 2nd crack with just about any bean
Depending on the time of the day, phase of the moon, I might have to stop the roast before the end of the cycle or if it's hot and humid and during the middle of the day (high energy demand on the grid), I might have to add some time.  Lately with the cooler late October ambient temps and lower humidity (I roast in my garage), I'm stopping the roast before it finishes.  BTW, the 1/P3/C profile is a 21:30 minute roast duration
I've used this Behmor profile roasting a lot of Mexican Turquesa (10 lbs?) and other odds and ends (other centrals, south American, a few stray Yirgs, etc.)  Right now I'm the 5th batch into 10 lbs of Pura Scura.  Since it's a blend and I'm roasting it all together green, there are some stragglers and for me that means I'll err on the side of longer time keeping it into 2nd crack but usually, 20 seconds then hit cool.  That gets me to a light Vienna, oil on some of the beans but not terribly oily   
Others may have better and different ideas but try 12 ounce batches at the profile I mentioned, and watch/listen to the roast carefully during the last 4-5 minutes of the roast cycle.  I don't use a variac.  My home was built 10 years ago so newer type wiring.  I've used a voltmeter to check voltage at the other plug ($20 digital multimeter) while roasting on enough batches to know I'm always over 120 volts so voltage for me at this point, isn't a concern I have
Jake
Reddick Fla.
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