KKTO Roaster Finaly Completed

Bevo

Thanks all. Ok back to the workshop. I have noticed that I may be able to slide the TO ring down the outside of my bottom pan and the blue heat tubing makes a very tight seal. This would mean removing the stainless angled plate but I dont think this will interfere as the collander has feet to keep it off the bottom of the pot for air flow. I would just need to cut down the collander by 3-4 cm. This would leave the top lip/gunnel removed allowing a possible escape path for the chaf from the bottom? or maybe the TO fan will keep a positive pressure and keep it down the bottom. Well this is the plan, anyone see any red flags before I begin, better now than after I start cuting 😉

Koffee_Kosmo

Once the chaff is in the outer chamber it will stay there You can also make smaller legs KK

Bevo

Good to know about the chaff. Kosmo if I had a mill, no problem. The legs lock the collander in and would be very hard to reduce, they are only 16mm high so It will be much easier to cut the collander. I could even braze the lip back on if I feel extra keen. Cheers for the help, I feel Im getting close to a consistent roaster....

derrilex

I'd just chop the TO ring in half. That will get rid of 3 lt and put you right on the money. I did mine, easy peasy

Bevo

Sounds good. While out today the cheapo kitchen shop was selling halogen TOs for $39.95. Needles to say I grabbed one. See how we go, seems to be 10 degrees hotter and hopefully will light up the beans. sean edit. no same temp my mistake. After swapping diffuser plates, old one modified, the halogen lamp looks like it will work a treat, as well as being deaf (not hearing crack) Im going blind (cannot see beans change colour well), it all helps as I get old and frail.

derrilex

Halogens are the only way to go. :thumb:

derrilex

I got rid of the plate totally and bent the fan blades a touch too. Works a treat. The halogen light gives a false colour to the beans too so don't rely on it. Use smoke ( as impending cracks) and sound ( as the actual cracks). When 2nd crack starts ( if you go that far) lift the lid and look at the beans. The true colour will be revealed. Then you can just leave them spinning in the bowl until 2nd crack really gets going or you like the colour.

Bevo

Cheers Dereilex Good info. I was going to fibreglass the pan and TO ring for heat retention, its just standard CSM aound 600gsm. I dont think the oven temps are high enough to damage the glass, not as if its a furnace. Your thoughts? alternatives?

derrilex

I fully wrapped mine in earth wool and

Koffee_Kosmo

This is a photo of Derrilexs roaster [attach=1]

Bevo

Hi all. Well all the mods are done. Halved the TO ring to give me about 7.7 liter total volume, using 3/8 shaft for aggitator, fiberglassed TO ring and stainless plate for issulation, finished with a woven cloth. Plus the new halogen TO. Ran a roast today 300g to see if better. Well, temp climbed quickly, preheated to 140c then by 5 mins there was smoke, then loud cracking, oh man it was awesom. Then I heard lots of rolling cracking and by 9 mins there was cracking and smoke everywhere. lol Dumped into the cooler, very dark indeed. Well into second crack I would guess. I was so impressed, I can definitely tame this machine down to deliver the goods. Thanks all for the advice, youve solved my drama. Now I cant get the stupid roast program to save my entry, always something :-)

Koffee_Kosmo

Welcome to the KKTO owner / roaster club :thumb: The roaster will roast up to 1 kg and the sweet spot is around 650 grams Keep an eye out on good mixing agitation for best results KK

Bevo

Thanks Kosmo. I shall start to take notes now and try to be consistant. Will try the red bean again and see how it mixes. Cheers 🙂 Sean

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