[Homeroast] Boot Coffee
rickylc99 at gmail.com
Wed Jul 29 13:05:05 CDT 2015
ah, Always humble!
Thanks for sharing your experience, it is greatly appreciated.
BTW, USRC makes all their roasters in many configs, I picked up a show
special that had cooling fan but a vane to control air flow with a constant
air speed fan (two fans, one for cooling one for roast chamber air flow).
It would be really really nice to have a continuous control fan for roast
air flow !
I think my post 1st dev times are good, very similar to yours, with the
exception of very light roasts, they may still need some work.
I need tweaking in the dry and ramp stage. I was getting real nice body
and sweetness with dry of around 5:20 to 5:45 and ramp around 4:00 to 4:45.
I'm guessing smaller batch size accounts for some of the diff here too.
Of course all of the timings depend on how you "call it" and there is
variability to that.
Shortening both by approx 15-20% is leaving some mid range flavors on the
table. Tweak, Taste, Tweak! and iterate forever! :)
To bring this back to the original thread, how can you use these milestones
to improve technique and timings? can they be queues for BTU input in such
a way as to improve roasts?
I remember being at this stage with the Quest, in the beginning it was all
formulaic, go by the book, then the gradual switch to listening to the bean
not the timer or temp probe. I'm at that stage with the USRC now and
attempting to meld the two into true craft.
I also remember the beginning of my roasting experience when the valuable
info you just posted would have frustrated me to no end, I was looking for
a formula. not that what you posted doesn't fall into that category, but
the range is so wide! LOL!
Now I see the continuum, the dance, the constant flux of variable
parameters are no longer frustrating, they are beautiful.
On Wed, Jul 29, 2015 at 12:37 PM, miKe mcKoffee <mckona at comcast.net> wrote:
> To be clear I never said anything about having this thing called roasting
> coffee "Mastered"! While I've been roasting 15 or 16 years (and I'm still
> only "half-baked" lol) and roasting on my USRC 3k going on 8 years around
> Tons greens roasted on it so far I really just fake it pretty good :-). I'm
> told my roasts are excellent, been voted "Best Coffee in Clark County"
> multiple years running, yet by no means consider myself an expert even
> though others may say I am.
> Yes I control air flow 100% with variable fan speed. I had my 3k custom
> build with double sized fan motor so I could always have the damper in bean
> cooling position enabling roasting next batch while batch is cooling. (USRC
> 3k has only one fan while 5k and larger separate cooling fan) For
> consistency I never move the damper and 1st batch of the day load the
> cooling tray with old beans so start of roast air flow consistent 1st batch
> versus later batches.
> I wouldn't say you need to change your charge weight if that's the size
> batches you need. Controlling a smaller batch is just different than a
> batch. Though yes easier to "over control" hence over compensate/shoot a
> desired change with a small batch. But in fact good control on these
> oversized large batches I do is actually harder than smaller batches.
> A typical batch for me would be start of 1st 10:30 to 12 minutes depending
> on bean etc., finish stage usually ~2:30 many 3 to 3:30 start of 1st to end
> of roast total roast times 13:30 to 15:30. Light roasts extremely important
> to have enough start of 1st to end of roast development time or risk thin
> body, lack of sweetness and/or grassy. Of course not too much finish
> or risk flattening the acidity! Ah such a balancing act. And every bean is
> different. And for every "rule" there's an exception to the rule!
> Take good notes and remember there are no failures, just learning
> Slave to the Bean miKe mcKoffee
> URL to Rosto mods, FrankenFormer, some recipes etc:
> Ultimately the quest for Koffee Nirvana is a solitary path. To know I must
> first not know. And in knowing know I know not. Each Personal enlightenment
> found exploring the many divergent foot steps of Those who have gone
> Sweet Maria's List - Searchable Archives http://themeyers.org/HomeRoast/
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