TJ-067 1kg electric drum roaster.

[Pavoniboy]

Yeah still not ready for 1.25 as I realise there will be no leeway. I'll keep at 1kg until I feel I really understand my roaster and achieving the desired profile before I start pushing it.

[saoye]

Yup that's the same as my dimensions. 1.25 kg will be achievable. Bare in mind if you don't start with the right temp you will over stretch the roast.

[Pavoniboy]

The drum is 25cm long on the inside dimension and 24cm internal diameter.

I bought mine from Juan.

[Lukemc]

Pavoni did you buy from Juan or self import?

[Pavoniboy]

I'll try to remember to measure the drum tomorrow. With 1kg green it looks less than 1/4 full.
More roasting today. Loving it. Still improving every batch so far. Getting great results in the cup.

[saoye]

comfortably 400g but that's only because I haven't tried anything less. I've heard others quoted numbers around 250g.

Just out of curiosity Saoye , what is your minimum recommended green bean batch the TJ067 can handle comfortably?

[Pretzal]

Just out of curiosity Saoye , what is your minimum recommended green bean batch the TJ067 can handle comfortably?

[saoye]

Thanks for the help Saoye. It's good to know about cooling the drum. I had been anyway as felt it would be good but didn't know how cool I needed to get it. I had been coming down to 60 to be safe.
I still haven't increased my batch sizes but am really starting to nail the profile I'm after on the 1kg green batches.

I typically leave the door open, turn off the elements and leave the drum rolling with the air on full blast to suck the heat out. By the time I weigh, label my roasts, clean up etc, is about 30 minutes it's reasonably cool. I didn't go past 800g until I had at least 20 roasts on this machine. There is really not a lot left in contingency once you roast at 1.25kg in terms of controllability/power. Then again most 1kg roasters are really meant to roast 800g or 1kg green at maximum. I have seen 1 other tj067 locally and found some differences including the depth of the drum. I'm not sure if the buyer had requested smaller drum size to reduce the price etc, but would be interested to know the diam and depth of your drum compared to mine. My drum has ample room, at 1.25kg it's probably 1/4 or even less of the volume of the drum. The only problem for me to go past the 1.25 kg is really the power output and controllability of the roast.

[Pavoniboy]

Thanks for the help Saoye. It's good to know about cooling the drum. I had been anyway as felt it would be good but didn't know how cool I needed to get it. I had been coming down to 60 to be safe.
I still haven't increased my batch sizes but am really starting to nail the profile I'm after on the 1kg green batches.

[Pavoniboy]

Sorry for your disappointment LukeMC.

I'm beginning to get the hang of the roaster and how it responds. Roasts are already improving. Getting good results in the cup already too. Today's roasts smelt amazing, the best yet.

I'm overcoming my fear of backing off too much too early that happened in the very first roast. With good momentum I can still back off a lot, quite a bit before 1st crack.

I've been too involved with learning, to be taking photos but will try to remember next weekend.

[greenman]

Pavoni congratulations on your new roaster, impressive looking unit!! I'm sure you will have many hours of happy roasting and experimentation--enjoy!!!!

[Lukemc]

Sigh I had one of these sitting in sydney waiting to be picked up after a long wait from order day.........but had to let it be I sold as we have had to move to a rental property due to unforeseen circumstances....... I was really looking forward to using mine. Good luck pavoniboy subscribed to watch and learn as you go

[saoye]

1.25kg don't be afraid to charge up to 240deg especially for hard beans. Your roaster will take a few more roasts to season I'd say after 10 roasts your roaster will be fully seasoned so until then nothing is really as it seems in terms of profiling.
Never just turn the machine off without allowing it to cool down under 100 deg or you will warp the barrel. I use the pid reading for my charge temp not bean temp. Hope that helps.

[Pavoniboy]

I dropped at 190C.
What are your tips Saoye? I've only just begun so what I'm doing isn't very useful to anyone yet.
Especially tips for going up to around 1.25 green so as to yield full kilo brown batches.

[saoye]

What is your charge temp?