Behmor Plus - Roasting Approaches

[askthecoffeeguy]

Ive adopted several approaches depending upon the bean

1st up

400g on auto till rolling FC
Then increase drum speed
Then P1 for 30 sec
Followed by P3 for approx 1min
Lovely even and consistent results with minimal fuss

2nd up

P5 till rolling FC
Increase drum speed
then P1 for 30sec
And then to P3 / P2 until first snips of SC or puff of smoke

Both work a treat and I tend to slow drum speed down for both towards the end so that I can more accurately observe what is happening

Pat

[JojoS]

Hi guys,

i run 400g on P1 till rolling first crack then I hit drum speed and P5 for the duration of the roast, pulling the roast approx 30sec to 1min from the end of first crack, based on the beans - and I always get a terrific result that's easily repeatable and great for espresso

Best,

Pat

I suppose you meant P1 Auto and double the drum speed and P5 manual (100%) at the start of rolling 1st crack? Wow! That is really running it hot! How dark is your roast on the CS scale?

[askthecoffeeguy]

Hi guys,

i run 400g on P1 till rolling first crack then I hit drum speed and P5 for the duration of the roast, pulling the roast approx 30sec to 1min from the end of first crack, based on the beans - and I always get a terrific result that's easily repeatable and great for espresso

Best,

Pat

[bentkalec]

Thanks for the responses everyone. Ill just attempt a slightly gentler profile from now on and maybe up the mass slightly given the temp has been on the warmer side these last few weeks!

Cheers,

Ben

[Andy]

P1 manual will run 100% elements with the exception that the elements will cycle off if the roaster gets too hot, turning back on again when under the internal threshold. I "think" P5 manual will be the same.
...so different people will see different results in a P1 manual roast depending on ambient temperature, roaster temperature and weight of beans.

Extension cord sticker? More about the USA where voltages vary from 100-120v and the use of a low quality extension cord makes it worse. Put a sticker on there and you remove an unknown variable. Personally (err not as the distributor of the roaster who has to follow the manufacturers guidelines) in AU I've always used an extension cord but I use a good quality one and no longer than needed. No ill effects.

[TRRR]

Keep an eye on the element during a roast, the manual is incorrect.

On the topic of dubious documentation...why is there a sticker saying not to use extension cords? The roaster is only 1600W resistive load and well within the specs of an extension cord. Voltage drop will be insignificant. Does the roaster not meet Australian specs for wiring? I use mine with an extension cord.

[Agrajag]

P1 auto will drop the power to around 75% at about 10 mins

Interesting, that's not what the graphs in the manual suggest (the page that has "Roast Profiles/Heat Applications"). For P1 it has power % reaching 100% and staying there for the whole roast. If you're correct I guess I'm reading them incorrectly and the red line isn't really indicative of the element power (not sure what it would be if that's the case)

[Barry O'Speedwagon]

The heating power is not the same: P1 auto will drop the power to around 75% at about 10 mins when the fan kicks in (400g setting).

Maybe, but not according to my manual it doesn't. According to the manual, P1 stays on 100% for the duration of the roast....maybe it pulses on an off more frequently and the drum speed may change. P2 drops to about 70% power approximately 12 minutes into a 20 minute cycle.

[TRRR]

The element heating will be the same, given the graphs in the manual, however not sure about fan/exhaust difference


Why don't you try a different (slower ramp) profile if you're getting tipping? Manual P5 with 200g is going to be a hot/fast roast

The heating power is not the same: P1 auto will drop the power to around 75% at about 10 mins when the fan kicks in (400g setting).

I have been roasting using manual mode P5, 400g and using the fast drum speed. Seem to get more even bean colouration with the faster drum

[sprezzatura]

Behmor 1600 Plus 200gram Batch Report

PNG Mt. Ambra report: I tried pyrmontboy's method for 200g and was pleased with the results (so far so good!). 180 grams PNG, 200, P5, 0% power for :30 seconds at first crack then 50% power until ... well let's say I stopped at CS8+ (I'm running it through my V60 right now). It's nice and well developed; meaning evenly without any charring and a seed that I munched tasted juicy and originy. Having a sip of pour over ... very drinkable. Sweet, some fruits and a light, clean finish. No dark after taste or lingering on the back of the palate. No sourness, however, there's the tiniest suggestion of grassiness (I should've taking it a bit further!). I recommend this method or a variation if you are experiencing tipping or charring. I believe PNG is a softer bean (I am no expert) and this gentle ramp for drying seems to work well. Next time I'll develop it further as I like slightly darker coffee through the pour over.

[Agrajag]

I wanted to know if anyone could tell me whether the heat and power application differs from P1 AUTO to running at P5 MANUAL from the start?

The element heating will be the same, given the graphs in the manual, however not sure about fan/exhaust difference

however after 7 x 200g roasts, only one has exhibited no tipping

Why don't you try a different (slower ramp) profile if you're getting tipping? Manual P5 with 200g is going to be a hot/fast roast

[bentkalec]

Hello everyone,

Wanted to say a big thanks to Andy for his help and getting my Behmor to me so quickly! And another thanks to all here for the great advice on roasting approaches.

I wanted to know if anyone could tell me whether the heat and power application differs from P1 AUTO to running at P5 MANUAL from the start? I have been using the latter, in full manual mode, but with cuts to 25% at 1C, however after 7 x 200g roasts, only one has exhibited no tipping. Just wondering if in Auto, element/ fan cycling will help to be less aggressive to my poor beans, or should it operate identically? Sick of these poor beans getting ruined!

Thanks in advance,

Ben

[Agrajag]

Roasted some Ethiopian Sidamo last Tuesday, tried it last night, what a ripper! Delicious! Very happy with how it turned out. Preheated, loaded 200g and started with P4. 1C at ~12:30 and hit P2 for 30sec, then up to P4. 2C just started about 2:30 later and I hit cool as it had got going. Got a cupful of crema!

[Owlee]

Just an update on the gas. Roasted to your recommendations Barry! Delicious! Let them rest for 7 days and barely in bubbles in the crema.

Thanks again :thumbup:

[MrFreddofrog]

Interesting charts MrFreddofrog! You configured the logger to consider the first 5 minutes as preheat?

Something like that. Behmor recommend 1:45mins preheat which works out to be 60C on my ET thermocouple. So now I just wait until ET hits 60C and then load the charge regardless of the time. Not sure if that's the best way to do it but I figure Behmor have done a fair few roasts so I'll go with their recommendations for now