HomeRoast Digest


Topic: Drum roaster setup (11 msgs / 262 lines)
1) From: Ross
This is a multi-part message in MIME format.
I finished putting the drum roaster together and have already roasted 8 =
lb of beans.  It's so fun!  My wife says "how long do those beans stay =
fresh?"  I will say I'm glad I did start with a small roaster because I =
have wasted a few "small" roasts" in the learning process.  My first =
impression of big drum roasting was: "This is so much easier than the =
IR2."  I think the reason for that is when you want to change the heat =
during the roast you don't have to guess ahead of time and program when =
you want to do it you just exactly when you want to do it!   The only =
disadvantage of making the transition from small roaster to large one is =
you have trained yourself to roast a bunch of batches and once you get =
in the groove the next thing you know you better start selling coffee =
because you will have a lot of it!  I guess my friends will get free =
coffee for a while!  Good news for Tom is the order quantity will go up.
Here is the rest of the story on assembly for those who are following my =
progress. (Delete key now if appropriate) 
It turned out a number 49 drill bit (Ace Hardware) was the correct =
answer to converting my 3 15k BTU LP burners to natural gas.  I drilled =
each of the three nozzles and reattached the front power panel to the =
grill, perfect blue flame from HI to LO with the sliding air openings =
full open.  If you have different size BTU burners you will need to =
adjust that size (bigger for more BTU).
Diffuser:  After some thought I replaced the two pool tile with a thin =
sheet of 8"X18" metal I picked up at Lowes, works great.
Cooler:  Started with a 20" box fan ($10.00) from Lowes, and found a =
super perfect stainless tray in the garage (I have no idea where it came =
from so not much help for you guys but proof that sometimes I do get =
lucky.
Thermometer: When I stuck my SM Cooper 8" probe thermometer under the =
hood it was too low relative to the drum and obviously in direct heat =
because it would have pegged out if I didn't pull it out when I did.  =
The built in grill thermometer on the Charmglow/Brinkman grill is in the =
ball park with the temperature profiles Ron has posted on his RK drum =
web site, it is graduated in 20 degree increments and responds at a good =
speed so I don't think I need anything else.  The 45K grill power is =
over kill on a two pound roast way more than enough power. (makes me =
wonder if 30K would have been sufficient, but I haven't done a 4 lb =
roast yet) it was windy and it was still easy for me to change =
temperature very quickly.  Bottom line I would always rather have =
overkill than not enough and my natural gas setup may be hotter than the =
LP version.  I didn't put any lube or Teflon tape on the bearing areas =
and I still had no problem hearing 1st and 2nd crack.  You will laugh =
when you see the picture of the pin on the drum, that's what happens to =
a twice bent pin when you are in a hurry to get it out!  If someone has =
found a better drum pin setup please post it, this one could be =
improved.  I got two Ove Gloves at Walgreens and I'm glad I got two.  I =
wouldn't be typing this otherwise.  I will post the pictures in separate =
emails so I don't bog down the server.  For what it is worth for those =
considering this transition here is how much you can expect to spend.  
Drum and gear drive motor setup:  $395.00
Grill                                                210.00
LP bottle or natural gas parts             22.00
Rotisserie kit                                      75.00
Diffuser plate                                      8.00
Ove Gloves                                      28.00
Box Fan                                            10.00
Cooler Tray (18" flour sieve)            ~25.00
Total                                            $773.00  compare to =
HotTop or professional roaster.                                         
Regards,
Ross  

2) From: neal prentiss
Thanks for the info Ross.  FedEx is supposed to deliver my drum tomorrow.  I
have a question about the natural gas.  Is there any benefit to switching
from propane to natural gas other than cost, and convenience? Such as easier
temp control or flavor differences?
Neal
On 4/20/07, Ross  wrote:
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3) From: Ross
This is a multi-part message in MIME format.
Neal,
No, that's about it.  Except you never have to worry about running out =
of gas in the middle of a 4lb roast!  But it could be argued if the gas =
company was bombed by terrorists you could still roast coffee with LP =
and you could take your roaster on a camping trip with LP.  I would not =
have done it if I didn't already have a gas line plumed in and the parts =
laying around ready to go.  I noticed the conversion hardware (flex gas =
tube and quick disconnect) are about $35 to $40 bucks at Lowes or Home =
Depot.  The gas pipe fittings (shut off valve and assorted fittings to =
put the quick disconnect where you want) are easily available at Ace =
Hardware.   The only real consideration is do you have access to a =
natural gas line where you will be roasting.  If so I would convert, if =
not go with LP. 
Have fun,
Ross

4) From: Ross
Sorry about lack of pictures I have reduced the size in kilobytes but I =
can't seem to get them across.  I will try to send just one.
Ross

5) From: Ross
OK here is another
Ross

6) From: Ross
This is what the pin looks like after a couple frantic removals.

7) From: Ross
Diffuser with lots of burned chaff that needs to be vacuumed out.

8) From: Ross

9) From: Ross

10) From: Ross
Sorry I sent duplicates, this is the last picture showing the geared =
motor mounted on the right for us left handers.
Ross

11) From: Eddie Dove
Ross,
It looks like you did a lot of great work!  How about some links to
really big photos?
Eddie
-- 
Docendo Discimus
Home Coffee Roasting Blog and Profiles for the Gene Cafehttp://themeyers.org/HomeRoast/On 4/20/07, Ross  wrote:">http://southcoastcoffeeroaster.blogspot.com/Sweet Maria's List - Searchable Archiveshttp://themeyers.org/HomeRoast/On 4/20/07, Ross  wrote:
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