[Homeroast] Aricha roasting

miKe mcKoffee mckona at comcast.net
Wed Jun 25 16:53:48 CDT 2014

Brian may well be onto the cause of the problem. Just because the lid isn't
screwed down tight doesn't mean a natural vacuum from the beans cooling
didn't seal the lid tight.

At the PNW Homeroast Gathering Alchemist John hosted he roasted one of the
world's most exciting dynamic coffees, Island of St. Helena, and immediately
after roast sealed it in a glass jar. He however went to an extreme and
sealed it before cooling the beans at all! At the gathering we cupped a
bunch of samples Tom had brought. There where 2 "ringers", the ISH and a
high grade Robusta Tom had roasted. To a person everyone picked the same
coffee as the worst on the table, and everyone thought it was the Robusta.
Nope, twas Alchemist's destroyed ISH.

However, IF you used the exact same cooling and storage procedure you've
used for a long time probably not the problem...

Possibly your brew water temp was too low resulting in sour. So many
possibles, so many variables. I honestly haven't had a "sour" roast in many
many years  if ever and hence can't diag' the roast cause, if it's caused by
the roast, since haven't experienced the symptom.

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 before.

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-----Original Message-----
From: Homeroast [mailto:homeroast-bounces at lists.sweetmariascoffee.com] On
Behalf Of Brian Kamnetz
Sent: Wednesday, June 25, 2014 12:52 PM

I wonder if placing the roasted beans immediately in a glass jar with a
cover, and/or the relatively high ambient heat and humidity, might have
played a role. I seem to recall that, years ago, someone on the list did
some experimenting and recommended not covering the beans at all.


On Wed, Jun 25, 2014 at 2:38 PM, sallsup <sallsup at gmail.com> wrote:

> I don't time it with that level of precision.
> Usually I'll set it to 475F and 16 minutes.  But I hang out nearby and 
> start the cooling cycle when the smell is right, or if I miss that, 
> when the first pops predating 2nd crack get my attention.  Roasts 
> seldom hit 15 minutes in length as a result.
> The bad batch was what I would consider overroasted, as it got past 
> the individual precursor pops and up to about 1-per-second start of 2nd
> The ambient air temp was mid-80's with heat index in mid-90+ because I 
> hadn't yet turned on the A/C for the season, so the roast went faster 
> than expected. "It's not Charbucks but you can see their signs in the
> is my husband's favorite way of saying I took a roast a tad too dark.
> In this case, although the batch was darker than we usually do, it 
> wasn't dark enough to be awful.  The taste of overroasting is quite 
> different from the sour vileness that came out of this pot.
> (The next batch will be done with notes taken, since once I eliminate 
> whatever bad bean might have made it into the batch, I still need to 
> find the right roast).

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