Roasting with KKTO

[Lacehim]

Re: Roasting with KKTO

Just emailed them and changed my order to

1 metre of 6/11 tubing for the top pot.
1 metre of 4/8 tubing for the lower ring.

I will let you know how things progress.

[Koffee_Kosmo]

Re: Roasting with KKTO

Thanks KK.  They havent emailed me back about the tubing yet so I will order a smaller size too.

With my KKTO and San Marino I have enough toys to keep me busy for quiet a while.

Using the smaller size tubing for the lower ring is so the insert fits & seats snug on the lower pot as it was made to do
To large dia tubing will lift the insert up & may cause problems

KK

[Lacehim]

Re: Roasting with KKTO

Thanks KK. They havent emailed me back about the tubing yet so I will order a smaller size too.

With my KKTO and San Marino I have enough toys to keep me busy for quiet a while.

[Koffee_Kosmo]

Re: Roasting with KKTO

I was pulling way to early, hence the light roast on previous Sumatra Mandheling roasts.Also I definately heard RFC this time and also second crack & RSC were very easy to detect.

Thanks AM for the advice, I even made a coffee while it was stabalising so that I could relax while I roasted!

I remember telling AM the same thing when he started on his KKTO before it all got popular
( I said take the time and dont stress man )

Ive also ordered the blue tubing and will fit it when it arrives.Cant wait for Feb BB to come now that Ive got my confidence back.

I suggest you get 1 mt of 6mm x 11 mm for the top rim
And a smaller diameter for the lower ring seal

KK

[A_M]

Re: Roasting with KKTO

Got the chance to chat to AngerM during my visit about roasting with my KKTO.  So I took his tips on board and today I got to do a roast.

CS BB Sumatra Mandheling Gr1 2009 500gm again

No Flash

with Flash

Stabilizing pre roast for 8 minutes on 125 deg Celsius
Zerod timer Temp dial set to 250 deg Celsius
First crack was @ 10 min
Rolling first crack @ 12 min
Backed off temp to 220 deg Celsius for 90 seconds @14 min after rolling first crack and back up to 250 deg Celsius
First snaps of second crack was observed @ 19 min/sec
Rolling first crack started @ 20.30 min
Dumped to cool at 21 mins , final weight 410gm roasted.  So an 18% weight loss.

I was pulling way to early, hence the light roast on previous Sumatra Mandheling roasts.  Also I definately heard RFC this time and also second crack & RSC were very easy to detect.

Thanks AM for the advice, I even made a coffee while it was stabalising so that I could relax while I roasted!

Ive also ordered the blue tubing and will fit it when it arrives.  Cant wait for Feb BB to come now that Ive got my confidence back.

Bugger... Looks like ya listened ;D

Insulation and some oversized holes etc in the element guard etc... And ya may bring down the time a bit...

Here is to a great outcome and some good coffee

[Lacehim]

Re: Roasting with KKTO

Got the chance to chat to AngerM during my visit about roasting with my KKTO. So I took his tips on board and today I got to do a roast.

CS BB Sumatra Mandheling Gr1 2009 500gm again

No Flash

with Flash

Stabilizing pre roast for 8 minutes on 125 deg Celsius
Zerod timer Temp dial set to 250 deg Celsius
First crack was @ 10 min
Rolling first crack @ 12 min
Backed off temp to 220 deg Celsius for 90 seconds @14 min after rolling first crack and back up to 250 deg Celsius
First snaps of second crack was observed @ 19 min/sec
Rolling first crack started @ 20.30 min
Dumped to cool at 21 mins , final weight 410gm roasted. So an 18% weight loss.

I was pulling way to early, hence the light roast on previous Sumatra Mandheling roasts. Also I definately heard RFC this time and also SC & RSC were very easy to detect.

Thanks AM for the advice, I even made a coffee while it was stabalising so that I could relax while I roasted!

Ive also ordered the blue tubing and will fit it when it arrives. Cant wait for Feb BB to come now that Ive got my confidence back.

[Koffee_Kosmo]

Re: Roasting with KKTO

I might ask Pioneer Roastary if they would be interested in a bit of roasting training.Tim was intersted in the KKTO as a sample roaster when I saw him last week.I think he might think Im mad using a TO to roast beans but I did offer to take it in to show him when hes not so busy.Maybe I should drag you along KK?  

Might fancy a trip to the Sunshine Coast but coordinating my available time with yours & Tims may be a problem

Give the beans a day to degas and view the colour again

Also got the CS green starter pack with my BB order.I have 500gm of the following.Should I just roast them as 500gm or try a few blends?

Roast them as single origin first then blend
Give the Gambela Naturals a few min extra to first crack & SC than the other beans on the list

Anyway, regardless of results this is serious fun and moderately easy to learn the basics, then with time Im sure I will get consistently better results and learn a whole lot about different beans & different techniques to roast them.

I think its time for you to invest in a DMM

But I am glad you are having fun because roasting coffee beans should be fun  

KK

[Lacehim]

Re: Roasting with KKTO

Did another 2 roasts today with more success than yesterday.

Used the Pioneer Sumatra (at least I think they are Sumatra) Beans again 500gm



Preheated roaster for 5 mins @250 deg Celsius
Beans in @ Stabilizing pre roast for 4 minutes on 125 deg Celsius
Zerod timer Temp dial set to 250 deg Celsius
First crack was @ 9.30 min
Rolling first crack @ 11.30 min
Backed off temp to 220 deg Celsius for 90 seconds after rolling first crack and back up to 250 deg Celsius
First snaps of second crack was observed @ 16.30 min/sec
Rolling first crack started @ 17.30 min (smoke)
Dumped to cool at 18 mins , final weight 415gm roasted.

Second roast I did more of the CS BB Sumatra Mandheling Gr1 2009 500gm again.

This one seemed to go better than yesterday, there was certainly a lot of smoke letting me know it was at SC, just not sure if it was rolling or not...



Preheated roaster for 5 mins @250 deg Celsius
Stabilizing pre roast for 4 minutes on 125 deg Celsius
Zerod timer Temp dial set to 250 deg Celsius
First crack was @ 8 min
Rolling first crack @ 10-12 min
Backed off temp to 220 deg Celsius for 90 seconds after rolling first crack and back up to 250 deg Celsius
First snaps of second crack was observed @ 16.30 min/sec
Rolling first crack started @ 17.30 min (lots of smoke but the beans arent as dark or uniform in colour as the previous beans so its hard to tell by colour)
Dumped to cool at 18 mins , final weight 420gm roasted.

Also got the CS green starter pack with my BB order. I have 500gm of the following. Should I just roast them as 500gm or try a few blends?

Peru Ceja de Selva Estate
Brazil Pulped Natural
Ethiopian Gambella Naturals
Malawi AA Pamwamba

Anyway, regardless of results this is serious fun and moderately easy to learn the basics, then with time Im sure I will get consistently better results and learn a whole lot about different beans & different techniques to roast them.

Is there any CS roasters on the Sunny Coast willing to get together for a few roasts so that I could learn a bit more? I think Im the only KKTO beta tester on the Sunny Coast... I might ask Pioneer Roastary if they would be interested in a bit of roasting training. Tim was intersted in the KKTO as a sample roaster when I saw him last week. I think he might think Im mad using a TO to roast beans but I did offer to take it in to show him when hes not so busy. Maybe I should drag you along KK?

[Thundergod]

Re: Roasting with KKTO

The "Daddy.... Daddy... I want this" started just as I need to concentrate on the roast.

Maybe you can enlist them to help.

If they are old enough, ask them to call out the time or something like that so they think they are involved.

I know you cant keep the attention of younger ones for too long but if you have some "help" ideas up your sleeve they might come in handy if they start to bother you again at critical times.

[Lacehim]

Re: Roasting with KKTO

Kids just wanna have fun, you cant take that away from them

It was quiet funny roasting coffee with bubbles flying all around the place... it was quiet relaxing...

Pity I cant roast at night because the mozzies are really bad at our place.

I just tasted the beans that you gave me KK. I roasted on Monday 18th so 6 days post roast, and it was pretty damn good.

[Koffee_Kosmo]

Re: Roasting with KKTO

Hearing the rolling RC & SC part with my untrained ears is probably the hardest part.

Is it normal for the roast to be so uneven?  Should I have used the adapter ring???

I was trying to pull it a little earlier than last time to see how that would change the taste in the cup, but maybe I should just try to be consistent first.  The kids definately didnt help.  The "Daddy.... Daddy... I want this" started just as I need to concentrate on the roast.  But finding and hour to myself is just impossible at the moment.

Kids just wanna have fun, you cant take that away from them
If all else fails and times are in the ball park
Go by colour (visually)

KK

[Lacehim]

Re: Roasting with KKTO

Hearing the rolling RC & SC part with my untrained ears is probably the hardest part.

Is it normal for the roast to be so uneven? Should I have used the adapter ring???

I was trying to pull it a little earlier than last time to see how that would change the taste in the cup, but maybe I should just try to be consistent first. The kids definately didnt help. The "Daddy.... Daddy... I want this" started just as I need to concentrate on the roast. But finding and hour to myself is just impossible at the moment.

[Koffee_Kosmo]

Re: Roasting with KKTO

First crack was @ 9 min
Rolling first crack @ 12-13 min

Thats pretty spot on

First snaps of second crack was observed @ 15.30 min/sec
Rolling first crack started @ 16.00 min

You need to stretch out second crack to about 6 min from rolling FC
Or with the kids making noise you may have mistakenly thought you reached SC

KK

[Lacehim]

Re: Roasting with KKTO

Finally got to do another roast today.

I put the KKTO on a square of carpet and roasted 500gm Sumatra Mandheling Gr1 2009 from BB. Also I didnt use the adapter for this one.

Anyway heres the results, not sure this one went as well as the others.

Preheated roaster for 5 mins @250 deg Celsius
Stabilizing pre roast for 4 minutes on 125 deg Celsius
Zerod timer Temp dial set to 250 deg Celsius
First crack was @ 9 min
Rolling first crack @ 12-13 min
Backed off temp to 220 deg Celsius for 60 seconds after rolling first crack and back up to 250 deg Celsius
First snaps of second crack was observed @ 15.30 min/sec
Rolling first crack started @ 16.00 min
Dumped to cool at 16.15 mins , final weight 425gm roasted.

Seemed to go very quickly at the end... but I did have 2 kids in the background making a racket and its hard enough to hear the cracks as it is. How come kids always decided to turn the volume up when you really need them to be quiet?

Things moved along a lot quicker than I thought it would, but I did preheat the unit and I didnt use the adapter so I put it down to that. The roast doesnt seem that even and there was a fair bit of chaff.

So, any comments? Did I stuff this batch up... its certainly not as even as the previous beans I roasted.



(photos from my mobile so no flash)

[Lacehim]

Re: Roasting with KKTO

Thanks Lozzo, I might pop in there for a visit when Im next in Brissy.

Just ordered some green from Andy, I got the sample pack to try a few different beans, and a 2.5kg Sumatra Mandheling Gr1.

Its been great fun roasting so far. I just want wait for the weekend to roast some more.