Roast: Testing Behmor

[Javaphile]

Re: Roast: Testing Behmor

The two minute time most likely came from wanting to give the heating rods enough time to cool down so that any chaff that might hit them would not immediately ignite. Such burning chaff would then turn it into a potential ignition source for other chaff or objects near the roaster.


Java "Think Safety!" phile

[cksyd]

Re: Roast: Testing Behmor

Sure JP

But it aint in the book...

[Pavoniboy]

Re: Roast: Testing Behmor

OK, first couple of roasts through.

1st Roast:
400g Peru Ceja de Selva on P2 C 1lb settings. No time added/subtracted.

1st signs of 1C: 13:10
Rolling 1C: 13:40
End of 1C: 14:20

Hit Cool at 16:30 as was paranoid about going over. Never reached 2nd crack. Roast looks good but a tad light for my usual liking.

2nd Roast:

400g Peru Ceja de Selva on P2 C 1lb settings. No time added/subtracted.

1st signs of 1C: 13:10
Rolling 1C: 13:40
End 1C: 14:40

Hit Cool: 18:30
1st signs of 2C: 19:00

roast never made it into rolling 2C but only first snaps of 2C

Opened door and blew pedestal fan across opening at 20:30.

Roast looks and smells amazing! Got just what I was after on this roast. Will post some notes on taste in a few days or so.

[Javaphile]

Re: Roast: Testing Behmor

Sure JP

But it aint in the book...

It was most likely in an earlier version of the manual. There have been several versions of the manual over the years since the roaster was first introduced.


Java "Ver 1.0" phile

[mr_fox]

Re: Roast: Testing Behmor

oops sorry...exactly the same roaster, i was looking at the picture on the BOX...

[Pavoniboy]

Re: Roast: Testing Behmor

Okay, so concensus is I should just open the door straight away and blow the fan across the opening?

Ill go with this unless someone tells me otherwise.

[Javaphile]

Re: Roast: Testing Behmor

Okay, so concensus is I should just open the door straight away and blow the fan across the opening?

I dont believe anyone has said to open the door immediately upon entering the cooling cycle and blowing a fan across the opening. I can think of several reasons why you would not want to do such a thing.

• First and foremost would be the fire hazard: http://coffeesnobs.com.au/YaBB.pl?num=1262756782/30#30
• If you roast into 2nd crack you would trigger your smoke detector(s) if youre roasting indoors.
• You would also very likely dramatically shorten the life span of the heating elements by cooling them too quickly and unevenly.
• You would void the warranty.

Java "Did I mention the fire hazard?!" phile

[Trizo]

Re: Roast: Testing Behmor

what are the main reasons for trying to cool the beans so fast? is it to prevent the beans from further roasting? or does it have some other benefit?

[brett230873]

Re: Roast: Testing Behmor

what are the main reasons for trying to cool the beans so fast? is it to prevent the beans from further roasting? or does it have some other benefit?

I believe it prevents the beans from baking, but correct me if Im wrong.

[Luke_G]

Re: Roast: Testing Behmor

I am under the impression it stops the roasting process.
With 200+ degrees still in the beans they would continue to roast for at least a couple more minutes after stoping the heat due to residual heat inside the beans and the mass.

What you will find is that if not cooled straight away the beans will end up darker than wanted. So by cooling instantly, your stopping the roasting process where you want it and not letting it go any further.

[Pavoniboy]

Re: Roast: Testing Behmor

I dont believe anyone has said to open the door immediately upon entering the cooling cycle and blowing a fan across the opening. I can think of several reasons why you would not want to do such a thing.

* First and foremost would be the fire hazard: http://coffeesnobs.com.au/YaBB.pl?num=1262756782/30#30
* If you roast into 2nd crack you would trigger your smoke detector(s) if youre roasting indoors.
* You would also very likely dramatically shorten the life span of the heating elements by cooling them too quickly and unevenly.
* You would void the warranty.

Smoke doesnt matter - I roast in the garage with the door open. I also usually dont roast past beginnings of 2nd crack.
Warranty probably doesnt matter - am thinking of using it as a cocoa roaster as well which will probably void warranty and it was such a good deal am basically willing to risk it once Ive ran it long enough to make sure there arent any obvious manufacturing faults.

Life of machine does matter (am willing to risk it as above but not willing to knowingly stuff it up early) and fire kinda matters too I think

...so JP, do I get you right in thinking it is best to still leave it sometime before opening the door, but do open the door once it has had some chance to begin cooling?

[Javaphile]

Re: Roast: Testing Behmor

...so JP, do I get you right in thinking it is best to still leave it sometime before opening the door, but do open the door once it has had some chance to begin cooling?

Yup! Not opening the door means it takes far too long for the beans to cool. Personally I wouldnt open it any sooner than one minute into the cooling cycle.


Java "Cool me quick!" phile

[Pavoniboy]

Re: Roast: Testing Behmor

Thanks JP.

[Gra]

Re: Roast: Testing Behmor

Roasted 10.00oz--286gm Peru Ceja De Selva on P4 D +1.00 which is 16:00min total roast time I like to cool my beans at the end of F/C.

F/C was at 13:30 moving in to full rolling at 14:20 I hit the cooling button at 15:30 just at the end of F/C roast weight 240gm--8.5oz.. Opened the door after 2:00 cooling and used my shop vac at corned of the opening to catch the chaff worked fine no mess+ faster cooling.

bagged and sealed I dont use these clear bags this is one I found in the draw I normally use full color..

[Pavoniboy]

Re: Roast: Testing Behmor

OK, first couple of roasts through.

1st Roast:
400g Peru Ceja de Selva on P2 C 1lb settings. No time added/subtracted.

1st signs of 1C: 13:10
Rolling 1C:13:40
End of 1C:14:20

Hit Cool at 16:30 as was paranoid about going over. Never reached 2nd crack. Roast looks good but a tad light for my usual liking.

2nd Roast:

400g Peru Ceja de Selva on P2 C 1lb settings. No time added/subtracted.

1st signs of 1C:13:10
Rolling 1C:13:40
End 1C:14:40

Hit Cool: 18:30
1st signs of 2C: 19:00

roast never made it into rolling 2C but only first snaps of 2C

Opened door and blew pedestal fan across opening at 20:30.

Roast looks and smells amazing! Got just what I was after on this roast. Will post some notes on taste in a few days or so.

Have had some interesting results. Replicated 2nd roast above but was going to let it run just a little bit longer to let it coast into a rolling 2C just so I had the experience of getting into that stage on the Behmor.

However, roast was significantly different. I can only put it down to ambient temperature and humidity. I didnt think ambient temperature would have much effect on the Behmor, but then again it was a huge ambient temp difference - 39C in garage on first 2 roasts (I was keen as roaster had just arrived) down to 24C in garage for 3rd roast late last night. Humidity was significantly different too, but have nothing to measure it.

Again 400g Peru Ceja de Selva on P2 C 1lb settings.

1st signs of 1C 13 mins
rolling 1C 13:30 mins
end of 1C 14:50 mins

1st signs of 2C 18:20 mins
Hit cool immediately.
Continued into rolling 2C for another minute and 10 seconds
end 2C 19:30
Opened door and blew fan across.

So, I hit cool 10 seconds before last batch and yet went further into roast - well into rolling 2C and ended up with beans darker than I usually like.

Anyway, I have now roasted too light for me, right for me and too dark for me - the steps to gaining experience have begun!

Not long to the best part too - the tasting.