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Behmor "Full Stop" Cooldown Method
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Endo
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Posted Sat Jun 11, 2011, 6:24pm
Subject: Behmor "Full Stop" Cooldown Method
 

I've been roasting for the last 2 years with the Behmor 1600 with good success.

I use a few different techniques to get the roast the way I like it best (preheating machine, door-opening, etc). One that I find really improves the roast is to remove the hot chaff tray and drum at 2C (using oven mits) and quickly hit the "cool" button again on the machine for the usual 13 min cooldown period. While the machine is cooling, I dump the beans on a wide pizza tray (outdoors) to cool in the optimal 5 min period.

I try to minimize the time the machine is stopped without cooling to avoid the temperature "soakback" that could damage heat sensitive electrical components. I've managed speed up my removal time, so the machine is only stopped for about 10-15 seconds, so I seriously doubt there is enough time for the temperature to rise high enough to do any damage. Besides, by removing the large thermal mass of hot beans, drum and chaff tray, the machine cools MUCH faster ...possibly improving reliability?

I've seen that others use cooling fans with the door open, but I'm not interested in doing this (no chaff snowstorms for me!)

While I've been running my machine successfully this way for 6 months now (post warranty though) and have no intention to stop, I'm wondering if anyone out there using this technique has thermocouples installed inside and can comment on the temperature spike when doing a full, uncooled stop. Or has anyone using this technique had their machine stop working?
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IMAWriter
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Posted Sat Jun 11, 2011, 11:03pm
Subject: Re: Behmor "Full Stop" Cooldown Method
 

Can you imagine...a contest to see who can remove both the hot chaff tray and bean drum and get the cool down cycle punched in the quickest time! LOL

(from shutdown to cool down re-started, 11 seconds....ta-da!)
I don't do that anymore...did it a couple of times and felt CONSIDERABLE euphoria, eventually tempered by remorse, shame, guilt, and finally a feeling the Joe Behm HIMSELF was looking down from on high, saying "shame on thee, geekster."

As I was one of Joe's beta testers, I can attest to the hardiness of the 1600, but I haven't the knowledge of electronics to know if this is not such a good thing to do.
So, I do the open door fan thing, first sweeping out the chaff...not sure why folks are so up in the air about chaff, but then again, I roast in the garage, where chaff on the floor is DECORATION.


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efilive
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Posted Sat Jun 11, 2011, 11:54pm
Subject: Re: Behmor "Full Stop" Cooldown Method
 

I'd guess you're all worried about nothing. The electronics are the behind the keyboard in a separate compartment and the 10 or even 30 seconds it takes to remove the drum  will probably make no difference in its electronics life.

Ira

 
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Endo
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Posted Sun Jun 12, 2011, 3:44pm
Subject: Re: Behmor "Full Stop" Cooldown Method
 

efilive Said:

I'd guess you're all worried about nothing. The electronics are the behind the keyboard in a separate compartment and the 10 or even 30 seconds it takes to remove the drum  will probably make no difference in its electronics life.

Ira

Posted June 11, 2011 link

I agree (though I think I've seen some sensor electronics on the sides as well).

I figure this method is discouraged mostly out of fear someone would either burn themselves, or forget to turn the cooling back on and ruin the machine.

Honestly, I don't see any more personal risk than operating a BBQ or opening a pizza oven.

I'll let you know if my machine dies any sooner, but honestly, I'd be very surprised to see any problems.

In any case, the roasts turn out so much better, so I probably won't be changing my method any time soon. Even if I go through 2 machines, it's still cheaper (and can roast more) than a Hottop.
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Prof
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Posted Sun Jun 12, 2011, 8:03pm
Subject: Re: Behmor "Full Stop" Cooldown Method
 

I've got one of the early 1600's.  For cooling I just open the door, remove the chaff tray, and let the beans cool.  Within 5 minutes it is usually cool enough to handle so I don't sweat that phase of things any more.  Yeah, I roast outside so chaff going about is no problem.

 
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Posted Mon Jun 13, 2011, 10:12am
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yakster
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Posted Mon Jun 13, 2011, 2:56pm
Subject: Re: Behmor "Full Stop" Cooldown Method
 

I've got a thermocouple in the back of the Behmor and monitored many roasts.  The cooling cycle of the Behmor actually starts out pretty good, the first two minutes or so of cooling are pretty quick so I let the Behmor cool the beans for the first two minutes (sometimes with the door open) before pulling the drum.  This also cools the drum down so it's not so hot when I grab it with the Ove Gloves.  I'll then dump the beans in my home made bean cooler and quickly restart the Behmor cool cycle.

The cooling curve of the Behmor starts to slow down after the third or fourth minute, I suppose because of the heat mass of the metal that makes it difficult for it to reach room temp.

 
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ChuckInVancouver
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Posted Tue Jun 14, 2011, 10:36pm
Subject: Re: Behmor "Full Stop" Cooldown Method
 

IMAWriter Said:

Can you imagine...a contest to see who can remove both the hot chaff tray and bean drum and get the cool down cycle punched in the quickest time! LOL

Posted June 11, 2011 link

Get some "Ove-gloves" and really cut your removal time down!  :) I do the same thing after letting the cool cycle run for two minutes. Ove-gloves (five fingered oven mitts) make it a LOT easier to get the drum out without burning yourself or fumbling.

Chuck
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Endo
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Endo
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Posted Wed Jun 15, 2011, 4:50am
Subject: Re: Behmor "Full Stop" Cooldown Method
 

ChuckInVancouver Said:

Get some "Ove-gloves" and really cut your removal time down!  

Posted June 14, 2011 link

Good idea! I see they are sold at Canadian Tire for $20. I'll pick up a pair next time I'm there.
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