Don't worry too much about a few C difference when changing probes. They will always have some delta from one to another.
Just offset it later on your software. Use first crack to help you nail down what is 200C reference point

Thanks for the input guys lowkl rytopa

Still new to the roasting terminology. Baru tahu what ET / BT / charge temp / means.
Currently watching video to learn more about the roasting process.

I am most probably going to manually monitor the temp manually before moving to roasting monitoring software. (after trial and error lol)
Btw, do share us the outcome of your DIY "surgery" on the thermometer probe, lowkl.

Looking forward to your sharing of your roasting experiences.

I must admit I learned a lot from logging the roast with pen, paper and a stopwatch, along with the thermometer. But would suggest you start exploring Artisan as well. It allows you to concentrate so much more on controlling the roast parameters instead of the logging. The software is free and quite easy to use, and with the MS6514 connecting up was also simple.

I will definitely check the software out. Thanks for the suggestion! Nice setup btw.

Now waiting for my thermometer to arrived. 

Currently,  I am using a steel kitchen thermometer to measure the drum internal temp ( BT? or CT?) to about 160c-200c

Just tested roasting some green beans few times,  definitely better than hand cranking for 10 - 15 minutes.

Oooo, careful, first crack is roughly 200C and with a little development temp, your roast will get to 210-215 before dump

I will definitely check the software out. Thanks for the suggestion! Nice setup btw.

Now waiting for my thermometer to arrived. 

Currently,  I am using a steel kitchen thermometer to measure the drum internal temp ( BT? or CT?) to about 160c-200c

Just tested roasting some green beans few times,  definitely better than hand cranking for 10 - 15 minutes.

As we do not really understand your thermometer position and characteristics and its just a make temporary measure, i would not pay attention much to the temperature reading, rather just use it as a guide, what you should be aiming for it phases, ie, from green to yellowing 3- 4min, from yellowing to 4-5 min, development time another 2-3 mins

It's green bean restocking time! Anyone want to join to do a group buy?

NAME PROCESS
Brazil Cerrado Dulce 17/18 FC Natural
Brazil Extra Fine 17/18 Natural
Brazil Pulped Nat. Fazenda Pedra Redonda Pulped Natural
Brazil Sul de Minas, ICATU Natural
Brazil Sul de Minas, OBATA Natural
Brazil Yellow Bourbon Pulped Natural
Brazil Yellow Catuai Pulped Natural
Costa Rica Tarrazu San Rafael SHB Washed
Cuba Altura Lavado Washed
El Salvador Finca Santa Adelaida Washed
Ethiopia Djimmah Jasmine Washed
Ethiopia Sidamo Guji G2 Washed
Ethiopia Washed Yirgacheffe Gr. 1 Kochere Washed
Ethiopia Washed Yirgacheffe Gr. 2 Washed
Ethiopia Yirgacheffe Gr. 1 Nat. Gedeb Natural
Ethiopia Yirgacheffe Gr. 1 Nat. Kochere Natural
Guatemala Antigua Los Volcanes Washed
Guatemala Atitlán Santiago Washed
Guatemala Coban Washed
Guatemala Fancy Agua Tibia Estate Washed
Guatemala Fancy Huehuetenango Washed
Guatemala Finca El Retiro Washed
Guatemala Finca Joya Grande Washed
Guatemala Huehuetenango Finca Victoria Champila Washed
Guatemala Huehuetenango Finca Victoria Champila (Maragogype) Washed
Honduras San Jose Washed
Indonesia Kintamani Honey Honey
Indonesia Robusta Fine Natural
Indonesia Toraja Kalosi Washed Washed
Kenya AA Top Washed
Mexico Chiapas High Land Washed
Mexico SHG ORGANIC/FAIRTRADE Washed
Nepal Mount Everest Washed
Nicaragua Finca Los Granadillos Washed
Nicaragua Finca Un Regalo de Dios (Yellow Catuai) Honey (Black)
Nicaragua Maragogype Nueva Segovias Washed
Nicaragua Pacamara - La Bendición Washed
Puerto Rico 360 Reserva Washed
Santo Domingo Barahona Washed
Uganda Arabica Bukonzo Cooperative (Fairtrade & Organic) Washed
Uganda washed Robusta Washed
CONDITIONS:
- 3Kg minimum (can get a deeper discount if 20Kg or more)
- need at least 2 pax (including myself) to make it worth it
- If you are in the Klang Valley area, I don't mind dropping it off. Outside Klang Valley, have to cater for delivery (either courier or you arrange for a pickup)
PM me for details.

I was thinking, does infrared gas stove suitable to be used as a heat source for the drum roaster?

Since I saw that the  Huky 500 are using one as well.

If yes, would it be OK if I use something like this:

http://www.butterfly1935.com/index.php/our...cts/item/bgc-10

I don't see why not. As long as the heater element is not too large (I would use the drum diameter as the gauge), then should be ok.

BTW this is the exact same stove I'm looking for my Kaldi Wide! The portable butane "camping" stove I'm currently using is convenient & generates enough heat, but the cost of those butane canisters are simply too high...adds over RM 1.50 per roast to my running costs. The only thing about these stoves is that I feel uncomfortable leaving a large gas canister outside the house. It seems smaller gas canisters are very hard to rent.

DIY home roaster. Pretty interesting project.

http://www.instructables.com/id/How-to-Bui...ee-Roasting-Ma/

I believe the builder is from Malaysia.

lowkl check out the cooling tray in the link.

Maybe we can try build one ourselves
https://forum.homeroasters.org/forum/viewth...?thread_id=5462

Excellent links, squallx840! The cooling tray / chaff remover is indeed fascinating, especially the cyclonic configuration. Was exploring ready-made cyclonic components, but so far all are in plastic. Shouldn't be a problem, but ideally made from metal.

Hi all, silent reader here. I'm looking for ~1kg inexpensive Brazilians as sacrificial input for my self-learning shenanigans. Will be starting off with a pop corn popper for now.

Does anyone have a stash that you're willing to share? By share i mean sell

Hi all, silent reader here. I'm looking for ~1kg inexpensive Brazilians as sacrificial input for my self-learning shenanigans. Will be starting off with a pop corn popper for now.

Does anyone have a stash that you're willing to share? By share i mean sell

Where you at? I can help you out

Hi guys,

I was going through the Coffee Lover thread and I realized not much of discussion on roasting coffee. Occasionally some sifu would talk about roasting but conversation would somehow sidetracked to other aspects of coffee. I am starting this thread so that we can discuss in depth with regards to coffee roasting. 

Any home/micro roasters sifu in the club? Would like to ask opinion on choice of roasting machine. I'm currently roasting with popcorn popper but think is time to take the plunge and get a proper machine.

I have short-listed three machines

1. Aillio Bullet R1

[attachmentid=8929604]

Pros:
- Looks. Really nice looking and small form factor
- All electric. Can use anywhere
- 1 kg capacity. Just nice for sample roasting and even small scale production
- Fully interactive with software for roast profiling

Cons:
- Expensive. 2624 USD
- New product. Just passed early release. Sorted out main problems but basically still a new product. No expert reviews yet

2. Hottop KN-8828B-2K+

[attachmentid=8929606]

Pros:
- Small form factor
- All electric
- Uses software as well for profiling
-Reliable, established brand
- Cheaper 1600USD

Cons
- Only 300g capacity

3 Sonofresco 600g/1.2kg roasters

[attachmentid=8929608]

Pros
- Simple operation.
- Easy maintenance. Only one moving part which is the fan. Since warranty would be difficult for import item, this is a plus point
- ?Air roaster (maybe cons to some people who prefer drum-roasting)
- Cheaper cost of running. Uses gas - just connect to cooking gas tank and electric for the fan
- Essentially a commercial machine, built to last
- Large capacity

Cons
- Large form factor. the 600g version is smaller but of course less capacity
- Expensive 600g 2595usd and 1.2kg 3595 usd
- Software need to add another 750 usd and also less robust compared to previous two.
Any sifus here have experience with these machines? Would really appreciate if can provide input. Of course there are other more professional sampler roasters options such as Quest M3, Huky 500, North Roasters but those are too big/bulky and the Wife says nono cos its ugly. Haha.

It will be great if can discuss on roasting experience and profiles here, too