Last few roasts all on my KKTO (Koffee Kosmo Turbo Roaster)


August 2011
Roasted for the first time
700 grams of Cuban Altura

Nice bean but as a single origin it finds it hard to cut through milk coffee styles
Better as espresso and very delicate

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A 4 bean mix on the KKTO, 800 grams in total
200 gr Guatemala Huehuetenango SHB
200 gr Yemen
200 gr Brazil Bourbon datera
200 gr Ethiopian Gambala

Lots of chocolate notes
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Mid month roast
700 grams of Peru Ceja de Selva Estate

This is one beautiful tasting bean (cant get enough of it)
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That brings us to today
Just finished today an experimental roast on the KKTO
Adding different beans at different time intervals into the roast

The 3 beans chosen were
Ethiopian Gambala naturals 150 grams
Bolivia Caravani Organic 300 grams
Sulawesi Toarco Jaya 300 grams
Total 750 grams

Method of this roast as I just acted on instinct
Pre Heat KKTO approx 5 min

Using a timer for recording all of this
Drop in ambient temp 230 deg Celsius

Drop in Ethiopian Gambala naturals for 1 minute
Drop in Bolivia Caravani Organic at 1 minute mark and roasted for 1 minute
At the end of the Bolivians 1 minute I dropped in Sulawesi Toarco Jaya

Many pseudo cracks were heard but officially first crack was 12 min 20 seconds from the drop in of the Ethiopian beans

I must confess that I lifted the TO up several times to take a peak and check progress so it would have slowed the ramp to second crack

Second crack was 19 min 15 seconds

Overall an even roast with about 12 lighter beans in the whole roast
I suspect that they were the Ethiopian Gambala as they did show some defects and I did my best to pick out the obvious defective beans prior to roasting

So we will see in a few days how it tastes

KK

allon wrote:Why not roast these coffees individually, then blend small quantities to tweak the blend ratios to find what works best?
Is there any advantage to pre-blending other than convenience?

I used to roast individual beans and blend post roast
My home roaster has the capability to roast green bean blends so I do it from time to time
My last experiment was adding beans at different intervals just to see if it could be done

My staple is still Single Origin roasts 80% of the time
I like experimenting to learn & expand my knowledge

KK