[Homeroast] Two QM3 roasts of Limoncillo Pacamara DP

Allon Stern allon at radioactive.org
Sun Jan 16 21:48:32 CST 2011


On Jan 16, 2011, at 10:09 PM, sci wrote:

> My next goal is to learn how to nail the Eth. Jimma DP in the Q.
> Fortunately, have about 5lb. If anybody knows how, I could use a primer. The
> Q has opened up a whole new territory in roasting for me.

In case you lost it, here was miK'es write up. I've had incredible results with this.


On Sep 30, 2010, at 1:38 AM, miKe mcKoffee wrote:
> Bryan's roast description pretty spot on. I'll elaborate a hair, start of
> 1st ~11:30 targeting EOR ~15 to 15:15 not quite 4min final stage. AND it's
> not ease off as 1st starts, it's SLAM on the brakes! just short of stalling
> or final stage will be either too short in time or run too dark a roast. Of
> course how "your brakes" react depends on the roaster and batch size. 7.09LB
> Jimma (to yield 6lb roasted) in USRC 3k I'm slamming the brakes dropping
> flame and kicking up air-flow to max hitting first, then minute and half
> later dropping airflow again:) Airflow and drum roasting can be a paradox,
> higher airflow can increase rate of roast by increasing convection but it
> can also slow roast by flushing out heat, interesting balancing act to learn
> and continue learning... FWIW dropping Jimma at about 432f, City+, ~20 to
> 25f before anticipated 2nd. A big key is a well developed start of 1st
> through finish stage of ~3:45 NEVER stalling. Control of your roaster is
> King, no matter what roaster.


and

On Oct 10, 2010, at 9:13 PM, miKe mcKoffee wrote:
> Nobody asked, though I think I did post my rough profile in different
> thread, but to avoid ruining a stellar bean with not so successful roasts
> might I suggest:
> 
> For drum roaster:
> 300f 6min 
> 405f 12min Start of true 1st, not earlies
> 432f 15:15 EOR
> (bean mass temps)
> 
> For air roaster (with the caveat I haven't air roasted this bean, strictly
> based on 6 years or so experience controlled profile Caffe' Rosto roasting):
> 300f 5min
> 405f 11min
> 432f 14:15
> 
> If you can't control your roaster all bets are off...



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