HomeRoast Digest


Topic: On Topic: Popper-Roasting (6 msgs / 189 lines)
1) From: Edward Bourgeois
Might it needing a good cleaning? Been a long time since I did a popper
roast. Used to always use full fan speed and slightly overload at start and
assist with wooden spoon and oven mitt until the beans started churning by
themselves
On Thu, Jul 11, 2013 at 1:09 AM, Robert Yoder wrote:
<Snip>
-- 
Ed Bourgeois
Amherst MA.
Homeroast mailing list
Homeroasthttp://lists.sweetmariascoffee.com/mailman/listinfo/homeroast_lists.sweetmariascoffee.comSweet Maria's Forum
Our new Coffee Library

2) From: Edward Bourgeois
With dew points consistently over 70 here for the past weeks, I've been
feeling like I'm roasting in a sauna. Not the best conditions for roasting.
On Thu, Jul 11, 2013 at 10:29 AM, miKe mcKoffee  wrote:
<Snip>
-- 
Ed Bourgeois
Amherst MA.
Homeroast mailing list
Homeroasthttp://lists.sweetmariascoffee.com/mailman/listinfo/homeroast_lists.sweetmariascoffee.comSweet Maria's Forum
Our new Coffee Library

3) From: Brian Kamnetz
I roasted with a stock West Bend Poppery 2 for several years. First in New
Mexico, where it worked fine with 1/2 cup of greens. Then I moved to
Columbia SC and could hardly get the beans to roast, in two different
buildings. The roast would get close to done, but then could barely be
coaxed over the top. (I removed the bimetal thermostat.) I finally settled
on an untested hypothesis that the increased level of moisture in the SC
air took more oomph to heat; my analogy, maybe bogus but the best I had,
was that if I were to run pure water through the popper it would never get
close to roasting temps, so as the level of moisture increased (and there
was a LOT of moisture in the air in SC compared to NM), it seemed it would
take more oomph to heat the air. Another possibility, one that I could not
test, was that the power level in the outlets was lower in SC than in NM.
In the first of the two SC locations I used a 25-foot 12 ga. extension
cord; in the second location I plugged the popper directly into the outlet
of a new house.
I was getting tired of the small batches anyway, so I switched from poppers
to a Master Appliance 751b heat gun, which allows me to easily roast a
pound at a time. Heat gun roasting might not be satisfactory for you
because of the much lower level of control; I just raise and lower the heat
gun using the by-guess and by-golly method.
Brian
On Thu, Jul 11, 2013 at 9:52 AM, Edward Bourgeois wrote:
<Snip>
Homeroast mailing list
Homeroasthttp://lists.sweetmariascoffee.com/mailman/listinfo/homeroast_lists.sweetmariascoffee.comSweet Maria's Forum
Our new Coffee Library

4) From: Martin Maney
On Thu, Jul 11, 2013 at 11:04:11AM -0500, Brian Kamnetz wrote:
<Snip>
I've often heard, and have repeated, the "moister air takes more heat"
(for a given temperature rise), and it's true, but it's always been
handwavy - no real idea how big a difference it makes.  So I had a few
minutes and went a-googlin' in search of answers, and if the numbers at
www.engineeringtoolbox.com aren't all wrong, the difference it makes
is...  pretty small.  For saturated air at 25C, the water vapor adds
about 4%.  The energy per degree of both change somewhat with
temperature, but ignoring that, let's calculate a bit...
Assume a heater power and volume of airflow with a 200C rise between
the inlet and outlet.  If we change that to air with 100% relative
humidity (which is about 2% water by weight), the outlet temperature
will be reduced by 7.2C if I've got this right - call it 13F, so it's
the same as if the ambient temperature changed from an afternoon high
of 85 to an evening roast-time reading of 72.  Or in yet other terms,
it's as though the heater power were reduced about 4%, equivalent to a
2 volt drop from a nominal 120V.
martin "never met a problem that didn't go better with numbers" maney
-- =
Here's my message to the record industry and its allies:
I'm not a thief.  I'm a customer.  When you treat me like a
thief, I won't be your customer.  -- Dan Gillmor
Homeroast mailing list
Homeroasthttp://lists.sweetmariascoffee.com/mailman/listinfo/homeroast_lists.sweetma=riascoffee.com
Sweet Maria's Forum
Our new Coffee Library

5) From: Brian Kamnetz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6) From: Robert Yoder
Thanks for your thoughts, Ed.  I will check that.
 
Happy Roasting,
 
robert yoder
 
<Snip>
Homeroast mailing list
Homeroasthttp://lists.sweetmariascoffee.com/mailman/listinfo/homeroast_lists.sweetmariascoffee.comSweet Maria's Forum
Our new Coffee Library


HomeRoast Digest