HomeRoast Digest


Topic: smaller roast batches in IR2 (19 msgs / 874 lines)
1) From: eric estes
Having some problems with roasting of some coffees, specifically the india =
tree dried and a zimbabwe.  am using the recommended batch size of 150 gram=
s.  About 7 to 8 minutes into the roast, the chamber is so full that the be=
ans just "stop moving", like they are jammed up in the center.  Hitting coo=
l gets them moving again, but with the beans that were caught in the air st=
ream almost burnt.  So obviously, need to use smaller batch sizes for these=
 coffees, and would appreciate input from anyone else who has done small ba=
tches in the IR2
Help yourself to FREE treats served up daily at the Messenger Café. Stop =
by today.http://www.cafemessenger.com/info/info_sweetstuff2.html?ocid=TXT_TAGLM_Oc=tWLtagline=

2) From: Brett Mason
Eric!
Use less beans...
Brett
On 10/30/07, eric estes  wrote:
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Cheers,
Bretthttp://homeroast.freeservers.com

3) From: eric estes
Ah, the obvious answer
From: homeroast: homeroast: Re: +s=
maller roast batches in IR2Date: Tue, 30 Oct 2007 10:21:43 -0500
Eric!
 
Use less beans...
 
Brett 
On 10/30/07, eric estes  wrote: 
Having some problems with roasting of some coffees, specifically the india =
tree dried and a zimbabwe.  am using the recommended batch size of 150 gram=
s.  About 7 to 8 minutes into the roast, the chamber is so full that the be=
ans just "stop moving", like they are jammed up in the center.  Hitting coo=
l gets them moving again, but with the beans that were caught in the air st=
ream almost burnt.  So obviously, need to use smaller batch sizes for these=
 coffees, and would appreciate input from anyone else who has done small ba=
tches in the IR2 
Help yourself to FREE treats served up daily at the Messenger Café. Stop =
by today!-- Cheers,Brethttp://www.reallivemoms.com?ocid=TXT_TAGHM&loc=us=">http://homeroast.freeservers.comPeek-a-boo FREE Tricks & Treats for You!http://www.reallivemoms.com?ocid=TXT_TAGHM&loc=us=

4) From: Stephen Carey
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That's what I do.  With some beans I drop down to 
about 135 to 140 grams - big difference.  It is a 
small roast, but that is fine, for it works, 
which is what counts.  Try it and let us know how 
it works for you.  I have done it a number of times now.
Good luck, Eric.
Stephen
At 11:21 AM 10/30/2007, you wrote:
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That's what I do.  With some beans I drop down to about
135 to 140 grams - big difference.  It is a small roast, but that is
fine, for it works, which is what counts.  Try it and let us know
how it works for you.  I have done it a number of times
now.
Good luck, Eric.
Stephen
At 11:21 AM 10/30/2007, you wrote:
Eric!
 
Use less beans...
 
Brett
 
On 10/30/07, eric estes
<ericestes
> wrote: 
Having some problems with roasting of some coffees, specifically the
india tree dried and a zimbabwe.  am using the recommended batch
size of 150 grams.  About 7 to 8 minutes into the roast, the chamber
is so full that the beans just "stop moving", like they are
jammed up in the center.  Hitting cool gets them moving again, but
with the beans that were caught in the air stream almost burnt.  So
obviously, need to use smaller batch sizes for these coffees, and would
appreciate input from anyone else who has done small batches in the IR2
Help yourself to FREE treats served up daily at the Messenger Café.

Stop by today!
-- 
Cheers,
Brett
http://homeroast.freeservers.com
--=====================_860998890==.ALT--

5) From: Brett Mason
Sorry, I know it seems just silly.  DO you have a digital scale or somethin=
g
to help you gauge accurately how much you're putting in?
I had a roast about a month ago in my home-made drum, and it went kind of
funny.  Was a new bean cache of beans to me.  I put 4lb in my drum, threw i=
t
into the BBQ and away we went.
After a while, the sound of tumbling beans stopped - I ran outside to a
smoking mess. Seems the load expanded to fill the drum - so no tumbling.
The beans on the outside charred up like Kingsford mini-briquettes, and the
ones on the inside were pale yellow....  Was a $20 mistake I think...
Lesson to self:  Use less beans...
Cheers,
Brett
On 10/30/07, eric estes  wrote:
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-- 
Cheers,
Bretthttp://homeroast.freeservers.com

6) From: eric estes
Hi Brett:
 
Actually the silly part is I did it twice with the same beans - even though=
 I had right in my roast notes to try a smaller batch the next time - ARRGG=
HH
 
Yah I do have a digital scale and am very careful with batch size.  Obvious=
ly going with a smaller batch is going to affect roast times, so just tryin=
g to get a feel for how much change to expect.  Will just have to test a bu=
nch to nail it down, which is not so bad considering I get to drink my test=
 results.
From: homeroast: homeroast: Re: +s=
maller roast batches in IR2Date: Tue, 30 Oct 2007 10:59:59 -0500
Sorry, I know it seems just silly.  DO you have a digital scale or somethin=
g to help you gauge accurately how much you're putting in?
 
I had a roast about a month ago in my home-made drum, and it went kind of f=
unny.  Was a new bean cache of beans to me.  I put 4lb in my drum, threw it=
 into the BBQ and away we went.
 
After a while, the sound of tumbling beans stopped - I ran outside to a smo=
king mess. Seems the load expanded to fill the drum - so no tumbling.  The =
beans on the outside charred up like Kingsford mini-briquettes, and the one=
s on the inside were pale yellow....  Was a $20 mistake I think... 
 
Lesson to self:  Use less beans... 
Cheers,
Brett 
On 10/30/07, eric estes  wrote: 
Ah, the obvious answer
From: homeroast: homeroast: Re: +s=
maller roast batches in IR2Date: Tue, 30 Oct 2007 10:21:43 -0500 
Eric!
 
Use less beans...
 
Brett 
On 10/30/07, eric estes  wrote: 
Having some problems with roasting of some coffees, specifically the india =
tree dried and a zimbabwe.  am using the recommended batch size of 150 gram=
s.  About 7 to 8 minutes into the roast, the chamber is so full that the be=
ans just "stop moving", like they are jammed up in the center.  Hitting coo=
l gets them moving again, but with the beans that were caught in the air st=
ream almost burnt.  So obviously, need to use smaller batch sizes for these=
 coffees, and would appreciate input from anyone else who has done small ba=
tches in the IR2 
Help yourself to FREE treats served up daily at the Messenger Café. Stop =
by today!-- Cheers,Brethttp://homeroast.freeservers.com
Peek-a-boo FREE Tricks & Treats for You! Get 'em!-- Cheers,Brethttp://home=roast.freeservers.com
Boo! Scare away worms, viruses and so much more! Try Windows Live OneCare=
!http://onecare.live.com/standard/en-us/purchase/trial.aspx?s_cid=wl_hotma=ilnews=

7) From: eric estes
Thanks.  Figured I would go down 20-30 grams at first, but just going down =
10-15 really made a big difference for you?  That would be just about right=
 size actually, should work out to 2 pots in the Tech without too much "mix=
ing leftovers"
To: homeroast: steve: Re:=
 +smaller roast batches in IR2Date: Tue, 30 Oct 2007 11:38:06 -0400That's w=
hat I do.  With some beans I drop down to about 135 to 140 grams - big diff=
erence.  It is a small roast, but that is fine, for it works, which is what=
 counts.  Try it and let us know how it works for you.  I have done it a nu=
mber of times now.Good luck, Eric.StephenAt 11:21 AM 10/30/2007, you wrote:
Eric! Use less beans... Brett On 10/30/07, eric estes  wrote: 
Having some problems with roasting of some coffees, specifically the india =
tree dried and a zimbabwe.  am using the recommended batch size of 150 gram=
s.  About 7 to 8 minutes into the roast, the chamber is so full that the be=
ans just "stop moving", like they are jammed up in the center.  Hitting coo=
l gets them moving again, but with the beans that were caught in the air st=
ream almost burnt.  So obviously, need to use smaller batch sizes for these=
 coffees, and would appreciate input from anyone else who has done small ba=
tches in the IR2 
Help yourself to FREE treats served up daily at the Messenger Café. Stop =
by today!-- Cheers,Brethttp://homeroast.freeservers.comWindows Live Hotmail and Microsoft Office Outlook – together at last.  =
Get it now.http://office.microsoft.com/en-us/outlook/HA102225181033.aspx?pid=CL10062=6971033=

8) From: Stephen Carey
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It did for me.  Now one thing is that I have a 
dryer duct hose connected to the lid and going to 
the ceiling fan, it pulls the heat out.  I can't 
say that is actually lightens the load, but it 
may, in a very small way, help.  But, I think you 
will notice a difference at 15 grams, I did and I weighed very carefully.
Good luck.
Stephen
At 12:20 PM 10/30/2007, you wrote:
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ctWLtagline>Stop 
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26971033>Get 
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It did for me.  Now one thing is that I have a dryer
duct hose connected to the lid and going to the ceiling fan, it pulls the
heat out.  I can't say that is actually lightens the load, but it
may, in a very small way, help.  But, I think you will notice a
difference at 15 grams, I did and I weighed very carefully.
Good luck.
Stephen
At 12:20 PM 10/30/2007, you wrote:
Thanks.  Figured I would=
 go
down 20-30 grams at first, but just going down 10-15 really made a big
difference for you?  That would be just about right size actually,
should work out to 2 pots in the Tech without too much "mixing
leftovers"
To: homeroast
From: steve
Subject: Re: +smaller roast batches in IR2
Date: Tue, 30 Oct 2007 11:38:06 -0400
That's what I do.  With some beans I drop down to about 135 to
140 grams - big difference.  It is a small roast, but that is fine,
for it works, which is what counts.  Try it and let us know how it
works for you.  I have done it a number of times now.
Good luck, Eric.
Stephen
At 11:21 AM 10/30/2007, you wrote:
Eric!
 
Use less beans...
 
Brett
 
On 10/30/07, eric estes
<ericestes >
wrote: 
Having some problems with roasting of some coffees, specifically the
india tree dried and a zimbabwe.  am using the recommended batch
size of 150 grams.  About 7 to 8 minutes into the roast, the chamber
is so full that the beans just "stop moving", like they are
jammed up in the center.  Hitting cool gets them moving again, but
with the beans that were caught in the air stream almost burnt.  So
obviously, need to use smaller batch sizes for these coffees, and would
appreciate input from anyone else who has done small batches in the IR2
Help yourself to FREE treats served up daily at the Messenger Café.

Stop by today!
-- 
Cheers,
Brett
http://homeroast.freeservers.com
Windows Live Hotmail and Microsoft Office Outlook – together at last.

Get it now! 
--=====================_863830125==.ALT--

9) From: True, Dennis W. FC1 (CVN69)
This is a multi-part message in MIME format.
ACK!!!!!!!!!! I can't imagine how many beans that would take!!!!!
 
	After a while, the sound of tumbling beans stopped - I ran
outside to a smoking mess. Seems the load expanded to fill the drum - so
no tumbling.  The beans on the outside charred up like Kingsford
mini-briquettes, and the ones on the inside were pale yellow....  Was a
$20 mistake I think... 

10) From: eric estes
cool - I will give it a shot
To: homeroast: steve: RE:=
 +smaller roast batches in IR2Date: Tue, 30 Oct 2007 12:25:17 -0400It did f=
or me.  Now one thing is that I have a dryer duct hose connected to the lid=
 and going to the ceiling fan, it pulls the heat out.  I can't say that is =
actually lightens the load, but it may, in a very small way, help.  But, I =
think you will notice a difference at 15 grams, I did and I weighed very ca=
refully.Good luck.StephenAt 12:20 PM 10/30/2007, you wrote:
Thanks.  Figured I would go down 20-30 grams at first, but just going down =
10-15 really made a big difference for you?  That would be just about right=
 size actually, should work out to 2 pots in the Tech without too much "mix=
ing leftovers"
To: homeroast
From: steve
Subject: Re: +smaller roast batches in IR2
Date: Tue, 30 Oct 2007 11:38:06 -0400
That's what I do.  With some beans I drop down to about 135 to 140 grams - =
big difference.  It is a small roast, but that is fine, for it works, which=
 is what counts.  Try it and let us know how it works for you.  I have done=
 it a number of times now.
Good luck, Eric.
Stephen
At 11:21 AM 10/30/2007, you wrote:
Eric!
 
Use less beans...
 
Brett
 
On 10/30/07, eric estes  wrote: 
Having some problems with roasting of some coffees, specifically the india =
tree dried and a zimbabwe.  am using the recommended batch size of 150 gram=
s.  About 7 to 8 minutes into the roast, the chamber is so full that the be=
ans just "stop moving", like they are jammed up in the center.  Hitting coo=
l gets them moving again, but with the beans that were caught in the air st=
ream almost burnt.  So obviously, need to use smaller batch sizes for these=
 coffees, and would appreciate input from anyone else who has done small ba=
tches in the IR2 
Help yourself to FREE treats served up daily at the Messenger Café. Stop =
by today!
-- 
Cheers,
Bretthttp://homeroast.freeservers.com
Windows Live Hotmail and Microsoft Office Outlook – together at last. Get=
 it now!
Peek-a-boo FREE Tricks & Treats for You!http://www.reallivemoms.com?ocid=TXT_TAGHM&loc=us=

11) From: Robert Gulley
Hi Eric
A couple of suggestions (I use the IR2 as well). 
First, make sure your chaff screen and chaff 
collector are clean - by that I mean use a 
descaler or other such cleaner every now and 
then. I found by using this my airflow was 
greater, even though the parts looked clean. Also 
you are right on track with smaller batch sizes - 
something in the 130-140 range has worked well to 
increase movement. And while this last idea is 
unlikely, make sure your base is not 
clogged/blocked in some way such that the airflow 
from underneath is restricted. I have never had 
beans that wouldn't move at all, but I have had 
the fan cycle up and down (more than normal) 
which changed the amount of bean movement. Try 
cleaning first - it may really help you as it did for me.
Robert RG
At 10:06 AM 10/30/2007, you wrote:
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"I have measured out my life with coffee spoons."  ~T.S. Eliot  

12) From: JoAnne Phillips
--Apple-Mail-1-749152792
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I have been roasting 130g in the iRoast 1 using Tom's favorite  
profile (except I run the time out to use up the full 15 minutes so I  =
can decide where I want to hit cool).  I have had no problem with the  =
beans getting jammed up in the center.  My roaster seems to run a bit  =
too hot and cutting down the size of the load has really helped me  
get control.
BTW, I agree with John Brown on the temperature - but then I'm from  
Tucson too.
JoAnne in Tucson
On Oct 30, 2007, at 8:06 AM, eric estes wrote:
Having some problems with roasting of some coffees, specifically the  
india tree dried and a zimbabwe.  am using the recommended batch size  =
of 150 grams.  About 7 to 8 minutes into the roast, the chamber is so  =
full that the beans just "stop moving", like they are jammed up in  
the center.  Hitting cool gets them moving again, but with the beans  
that were caught in the air stream almost burnt.  So obviously, need  
to use smaller batch sizes for these coffees, and would appreciate  
input from anyone else who has done small batches in the IR2
Help yourself to FREE treats served up daily at the Messenger Café.  =
Stop by today!
--Apple-Mail-1-749152792
Content-Transfer-Encoding: quoted-printable
Content-Type: text/html;
	charsetO-8859-1
I have been roasting 130g =
in the iRoast 1 using Tom's favorite profile (except I run the time out =
to use up the full 15 minutes so I can decide where I want to hit =
cool).  I have had no problem with the beans getting jammed up in the =
center.  My roaster seems to run a bit too hot and cutting down the =
size of the load has really helped me get control.
BTW, I agree with John = Brown on the temperature - but then I'm from Tucson too.
JoAnne in = Tucson On Oct 30, 2007, at 8:06 AM, eric estes = wrote:
Having some problems with roasting of some coffees, = specifically the india tree dried and a zimbabwe.  am using the = recommended batch size of 150 grams.  About 7 to 8 minutes into the = roast, the chamber is so full that the beans just "stop moving", like = they are jammed up in the center.  Hitting cool gets them moving = again, but with the beans that were caught in the air stream almost = burnt.  So obviously, need to use smaller batch sizes for these = coffees, and would appreciate input from anyone else who has done small = batches in the IR2

Help yourself to FREE treats served up daily at the = Messenger Café. Stop by = today! = --Apple-Mail-1-749152792--

13) From: Larry English
Eric,
  My standard batch size for the IR2 has been around 130 grams, but even
then some beans seem to expand more and I've needed to cut down a little
more.  Roasting a quarter-pound, around 114 grams, works out pretty well fo=
r
most varieties.  So that's my range - 114-130 g.  IMHO, 150 grams is too
large a load for the IR2.
Larry
On 10/30/07, eric estes  wrote:
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14) From: Phil Bergman Jungle Music
This is a multi-part message in MIME format.
Mine came with a small white scooping cup.  Instructions said never add more
than two full (not heaping) scoops.  Usually this works for me, but with
some beans is a bit much and with the low flow 3rd part to the IR2 cycle
bogs down a bit.
Phil

15) From: Barry Luterman
This is a multi-part message in MIME format.
One of the first things I learned when I had the i-roast was never to =
roast by volume. Always roast by weight. Most problems with home =
roasting can be avoided if you roast by weight rather than volume.

16) From: Phil Bergman Jungle Music
This is a multi-part message in MIME format.
Barry,
I don't use a scale for my IR2 and have heard that a scale is the best.
But (after perhaps a hundred roasts), I've found that not all beans expand
the same.  Some really puff up and others expand less.  Do you adjust the
weight for different types of beans?  I figure as long as I don't clog the
central roasting schute, I'm still OK.  Never using more than two scoops
with the scooper that came with the machine seems to keep the schute clear.
Phil

17) From: Barry Luterman
This is a multi-part message in MIME format.
Different beans have different moisture content.Moisture content is one =
of the variables that cause expansion of the beans. Using weight rather =
than volume of the beans gives the operator a little more control over =
the moisture content.

18) From: raymanowen
"...a $20 mistake..."
For That company, the black ones weren't a misteak- just business as usual!
-ro
On 10/30/07, Brett Mason  wrote:
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ms.com/?ocid=TXT_TAGHM&loc=us>
<Snip>
-- 
"When the theme hits the bass, I dance the Jig!" - -Virgil Fox at the Might=
y
Wichita (ex- NYC Paramount) WurliTzer- 1976

19) From: Mejia, Carlos
This is a multi-part message in MIME format.
I've been roasting exclusively with an iR2 for close to a year now.    I
have 'standardized' my batch size which is 150g, measured carefully on a
scale and only go smaller if I'm roasting the last amount of a bean that
I don't want to mix with something else.  I also have a flex hose that
is attached to the ceiling fan vent in my "roasting room" (utility
room).  It is not a very strong fan and you can just barely feel the air
movement at the open end of the hose that mounts over the iR2, but I'm
sure this impacts the roast profile some.  With the profiles that I
initially used, sometimes the fan would pulse, particularly near the end
of the roast, and slow the bean movement.  When this happened, the roast
would accelerate very quickly and jump from a FC to a FC+ in seconds!
After about 3 months of experimenting I finally arrived at a profile
that doesn't do this nearly as often.  I don't have the profile with me
at the moment but can post it or send it offline if anyone is
interested. 
 
I make sure that I brush the screen clean of chaff before I roast as
this will definitely constrict the air flow and increase the heat.  I've
roasted about a dozen different bean types with this profile and stopped
the roast from C+ to FC+ depending on the target (usually Tom's
recommendation) .   
 
So, in summary the iR2 is working just fine on 150g batches with the set
up that I'm using. 


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