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renatoa
08/10/2022 1:56 AM
nguyencoffeesupply
and RoyB, Welcome

renatoa
08/06/2022 1:31 PM
Welcome, oak202, CoffeeNutZ and Mlcharlestonsc

Strangeworth
08/04/2022 9:34 PM
Thank you!

renatoa
08/03/2022 2:09 AM
Strangeworth and BigPalm, welcome to forum

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08/02/2022 12:01 PM
Thank you guys and gals !! Exited to be here greenman

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Waiting on my Roaster and beans.
raullozano3
Hi just joined the Forum, very excited to start roasting had been debating it for the last 10 years Lol, but well decided to go into it; went with the FreshRoast SR800, seems the right choice not expensive but also not cheap for being my first roaster, but decided to invest at least what I can tell it is a good option for air roasters.

Any tips or a basic template I could follow, also getting 1lbs Ethiopia and 1lbs Colombian coffee from Amazon for testing, because I am sure there are better options but want to start first getting my hands on roasting.


thanks!
 
renatoa
What are your measurement/control choices and methods for this roaster?

According to some past threads about the basic hot air roasting approach, you should start with an air temperature in the 175-200C ballpark, and slowly ramp to 240-250C during the 3 minutes dry, then wait for first crack.
Experiments done by fellows revealed that good results are obtained even if you jump from 200 to 250 C degrees in some steps, not a must to have a smooth linear ramp.
Play with temperatures in the range above to aim first crack in the 6-7 minutes ballpark.
If no temperature monitoring available, then power levels scale approximate very close temperatures, for this class of machines.
But I mean real power levels, not what you read 1-2-3...-9 on a knob... For example, if you have 150 C degrees at 40% power level, then 250 C will be pretty close to 60%.

Regarding agitation, my experience with such machines taught me to keep it at a minimum, like a boiling, just to have a slow vertical movement. As soon as they start having fountain/popcorn style jumping, the roasting became less uniform.

Good luck and waiting first roasts !
Edited by renatoa on 06/06/2022 1:47 PM
 
AJRoaster
Definitely, recommend watching a few videos on Youtube on how to roast on FreshRoast. While Freshroast is amazing for what it can do in that size, the lack of automation and the moderate air temp and air flow, it requires certain fan and heat settings at different times during the roast, unlike popper or other fluid bed machines which can work relatively ok, with a constant air flow throughout.
 
renatoa
Isn't FreshRoast a fluid bed ?
My experience is different with a Chinese SR540 clone, identical mechanics and roast chamber, different electronic. It can roast with constant air flow, without any change from start to end.
More than this... it is even recommended to do so... the smallest change in airflow, in any moment, led to huge jumps in RoR.
Attached is a sample of such roast, with constant air flow, and heater controlled by a custom electronics/algorithm, no PID.
renatoa attached the following image:
0430_cchir_74gr_-_copy.png
 
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