HomeRoast Digest


Topic: Roasting coffee in a mug (18 msgs / 337 lines)
1) From: Scott Marquardt
http://scott.marquardt.googlepages.com/roastcoffeeinamug;-)
--
Scott

2) From: Jared Andersson
Thats great Scott. I would like to see more roast challenges like this.
Jared
On 4/9/06, Scott Marquardt  wrote:
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3) From: Steve Hay
On 4/9/06, Scott Marquardt  wrote:
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That's awesome.  Clever idea!  Those Halogens do get very hot.  Did you TC
it?
--
Steven Hay
hay.steve -AT- gmail.com
Barry Paradox: Consider k to be the greatest element of the set of natural
numbers whose description require maximum of 50 words: "(k+1) is a natural
number which requires more than 50 words to describe it."

4) From: Aaron
petty cool setup steve but eventually you are going to ignite that 
cardboard with the heat from the halogen.
For what it's worth,  I used to use haolgen lamps to melt lead (621 deg 
+) so yes they do get that hot.
also, if you were to insulate the outside of the can a bit, you will 
greatly reduce your heating time as well as the bare metal is a horrid 
radiator of heat.
one other thing,  you might want to play first but if you can get a can 
with a 'darker' interior, instead of the shiny metal it will absorb more 
of the heat and hopefully work faster too.
how did you stir them or just shake them once in a while.
aaron

5) From: Brett Mason
Can you send me an invite to googlepages?
Thanks,
Brett
On 4/9/06, Scott Marquardt  wrote:
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--
Regards,
Brett Mason
 HomeRoast
   ...who wants to sell his Silvia and pursue an espresso machine upgrade..=
.

6) From: Gary Townsend
 Brett Mason wrote:
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Brett, just type it in, using your gmail account, it's automatic.
I just tried it out.
Seems to be too easy ;-)
Gary
--
"I may be wrong, but I'm never in doubt." MM

7) From: Michael Wascher
... and then it says they arent accepting any more accounts at this time ..=
.
On 4/9/06, Gary Townsend  wrote:
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--
"Life is just one damned thing after another."
  - Elbert Hubbard

8) From: Scott Marquardt
Steve:
No, didn't TC it. That would've made more sense than losing heat by removin=
g
the bulb to shoot temps with the IR gun now and then. I have a TC, and migh=
t
try that to see how it profiles.
Aaron:
Yeah, the cardboard has to go. The cup is a thermal mug, so I can hold it i=
n
my hand all the way to second crack. It stays very cool -- the vacuum must
still be good. In fact, it only gets a bit warm around the top.
COME TO THINK OF IT . . . .  .!
What the heck? I don't get it. You can go out and buy fancy thermal mugs,
fill 'em with hot water to test 'em, and feel the exterior around their top=
s
20 minutes later and they'll be warm, indicating heat loss. But I can feel
the exterior of a two-bit broken cheapo thing I found in a box at Goodwill
after heating its contents to 450 degrees, and it's barely warm? Please.
As for a black interior -- no. No, no no. The entire point of what I'm
working on with radiant heat is as little conductive heat as possible. I
don't want anything to be warmer than the beans themselves. If the interior
of this thing is reflective, any bounced IR energy will just bounce around
until its partial absorptions asymptote (to verb a noun), or will be
absorbed by the beans. Or will go back into the bulb and reflect/absorb
there, of course.
BTW, I drank some of this stuff. I was awfully pleased; it was quite good.
By that I mean that I'd expected something about the 30 minute roast time t=
o
impart something not-so-good, but that wasn't the case. On the other hand,
the 30 minutes is a bit deceptive. Since I started with the thing cold, I
didn't have a "charge temperature," so to speak, and it took 15 minutes for
the beans just to get up to about 250. So really, about the time a profile
begins to matter in a roast, I only had 15 minutes to go.
Next I'm going to see if I can get that same form factor bulb in a 75,
scratch the cardboard, make the thing stay together on its own, and pre-hea=
t
it.
I'm willing to live with some conduction early in the roast -- as in any
conductance owing to a charge temperature. What I'm wanting to avoid is any
conductive heating later in the roast -- and this little experiment very
successfully results in the beans heating the metal, instead of the reverse=
.
Nice.
On 4/9/06, Aaron  wrote:
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9) From: Scott Marquardt
Well that's weird, what happened to the invite thing?
There used to be one, true enough. I can't find it now.
On 4/9/06, Brett Mason  wrote:
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--
Scott

10) From: Steve Hay
On 4/9/06, Scott Marquardt  wrote:
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Hmm.. Anyone have any nuclear reactors lying around?  I wonder what beans
roasted with Cherenkov Radiation would taste like.. Mmm..  Gammaa.. 
Scott, are you thinking that maybe the radiant heat results in more even
heating within the bean?  Also, are you sure its radiant heat you are
getting?  If the bulb gets above 600F then it could just be
conduction/convection through the air, no?
--
Steven Hay
hay.steve -AT- gmail.com
Barry Paradox: Consider k to be the greatest element of the set of natural
numbers whose description require maximum of 50 words: "(k+1) is a natural
number which requires more than 50 words to describe it."

11) From: Brett Mason
Would go well with Chicken Kiev...
Brett
On 4/9/06, Steve Hay  wrote:
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od.
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--
Regards,
Brett Mason
 HomeRoast
   ...who wants to sell his Silvia and pursue an espresso machine upgrade..=
.

12) From: Aaron
actually if you were going to roast beans with radiation gamma would be 
the best of the 3 most common found in chernobyl.
alpha and beta are particles, gamma is a pure radiation, nothing 'dirty' 
left behind,  nice clean heat there.... now to make your furnace with 
walls 10 feet thick to contain it all
aaron

13) From: Espressoperson
Hey Scott,
 
Fun stuff. First HB/TM roaster! 
 
Why not treat the mug like a little drum. Tilt it on its side, find a  simple 
way to turn the mug, manual or low speed electric. Insert a  simple metal 
vane (ss ruler?) to toss the beans around. Shine the light on the  rotating mass. 
You could vary the distance between the lamp and the mug to gain  some temp 
control if needed. You may not even need a cover or seal if it is  tilted at 
the right angle and it is truly roasting by radiant energy. 
 
In a message dated 4/9/2006 6:17:21 P.M. Eastern Daylight Time,  
scott.marquardt writes:
Steve: 
No, didn't TC it. That would've made more sense than losing heat by  removing 
the bulb to shoot temps with the IR gun now and then. I have a TC,  and might 
try that to see how it profiles.
Aaron:
Yeah, the cardboard has to go. The cup is a thermal mug, so I can hold it  in 
my hand all the way to second crack. It stays very cool -- the vacuum must  
still be good. In fact, it only gets a bit warm around the top. 

14) From: Scott Marquardt
Yeah, I thought of that. Have a way to do it as well. If it'll allows some
chaff ventilation, that'd be good. Combusting the chaff among the beans as
it approaches second crack can't be good for what I'm trying to do.   :-\
That's a BIT of an exaggeration, but air poppers sure spoil a guy for chaff
riddance. With this thing, it's ALL THERE.
Steve: The lamp temperature itself seems to never even approach 300 degrees
F. Nice.
Doggonit, I just took the roast a lot deeper than I'd intended on my new
build. I'll post some pics in a bit, of the new setup. Meanwhile, I have a
smoking Spanish to consider what to do with.   :-\   Hey, I'll say this.
It's an even roast.
LOL
On 4/9/06, Espressoperson  wrote:
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--
Scott

15) From: Brett Mason
Rest it
Grind it
Spread it in your garden...
Brett
  Coffee Everywhere
On 4/9/06, Scott Marquardt  wrote:
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--
Regards,
Brett Mason
 HomeRoast
   ...who wants to sell his Silvia and pursue an espresso machine upgrade..=
.

16) From: J.W.Bullfrog
Steve Hay wrote:
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Pretty cool looking when buried in a pool of water. 30 ft of water just 
causes this pretty blue glow when the lights are out.
<Snip>
-- 
There is a theory which states that if ever anyone discovers 
exactly what the Universe is for and why it is here, it will 
instantly disappear and be replaced by something even more 
bizarre and inexplicable.
There is another theory which states that this has already happened.

17) From: Scott Marquardt
OK, updated model. A couple fresh pics and a few comments.
I suspect I'll be making a drum roaster of it next. We'll see.
- S
On 4/9/06, Scott Marquardt  wrote:
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--
Scott

18) From: Woody DeCasere
All i know Steve is you wouldn't like those beans when they are angry!!
Beans Smash Steve!!!!
On 4/9/06, Steve Hay  wrote:
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"Good night, and Good Coffee"


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