After doing many many corretto roasts using a Breville BB270 which has a small square bin, combined with a Bosch 630 HG, digital temp control 50-630 c with 3sp fan. I keep the bin is 90% covered after 60c and up until the last min before second crack, 220c, then watch and listen.
My question to other CS members is ,..... Do you have an opinion as to whether roasts benefit from using a higher fan speed and lower heat setting on HG , thus providing more air flow to maintain the same temps particularly after first crack ...... If in fact we corretto users are trying to replicate a fluid air style roaster.
For my first 2 years of using the corretto I use to back off the temp leading into 1st C and back it off a bit more at first crack and run HG at a slower fan speed ..... So HG temps went from about 580+ c down to 490-520 range on slow fan.......to achieve 3-4 c increase p/min to second crack.
Now with a different approach I start to lower my temps as first crack is near , and after first crack I can lower my temps to 360-400 c and still generate my 3-4c p/min increases using fan speed.
OK so both methods have proved to deliver well roasted beans.
Can any members offer an opinion as to the benefits of one method over the other ?
Is more air speed a good thing ?
Is lowering the temp between first crack and second crack down to 370 of benefit to beans and roast ?
Your thoughts would be appreciated...!
Cheers
Greg
My question to other CS members is ,..... Do you have an opinion as to whether roasts benefit from using a higher fan speed and lower heat setting on HG , thus providing more air flow to maintain the same temps particularly after first crack ...... If in fact we corretto users are trying to replicate a fluid air style roaster.
For my first 2 years of using the corretto I use to back off the temp leading into 1st C and back it off a bit more at first crack and run HG at a slower fan speed ..... So HG temps went from about 580+ c down to 490-520 range on slow fan.......to achieve 3-4 c increase p/min to second crack.
Now with a different approach I start to lower my temps as first crack is near , and after first crack I can lower my temps to 360-400 c and still generate my 3-4c p/min increases using fan speed.
OK so both methods have proved to deliver well roasted beans.
Can any members offer an opinion as to the benefits of one method over the other ?
Is more air speed a good thing ?
Is lowering the temp between first crack and second crack down to 370 of benefit to beans and roast ?
Your thoughts would be appreciated...!
Cheers
Greg


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