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Thread: Hottop KN-8828B-2K+

  1. #1
    Senior Member DavidW1960's Avatar
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    Hottop KN-8828B-2K+

    Gene Cafe Coffee Roaster $850 - Free Beans Free Freight
    Anyone roasting using one of these?

    Anyone got it talking/being controlled by the Artisan software yet?

    Yeah so I got one and have done some pretty good roasts on it - just following the Greg Pullman video on hottop.com.au

    I've tried to save my roast profile but it didn't 'seem' to be doing it - but the last roast I did it was definitely adjusting the heat but not the fan for some reason. Weird. So I did get artisan talking to the roaster and I get a nice plot of a roast. (see attached)

    Just after 2 mins it switched the fan on which I quickly turn off and at around 5 mins it briefly turns the heat down which I crank back up to 100% (or the program does this for the heat as well when I am running my saved program) Dumping the beans just after second crack starts and I'm getting CS11 roast. A world of difference to my Behmor roasts.

    Anyway, interested to hear of anyone using Artisan to control the roaster as it doesn't seem 100% straight forward to me.
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  2. #2
    Senior Member SniffCoffee's Avatar
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    Hi David

    The fan turning on after 2 mins - I think that's automatic to get some of the moisture out of the roasting chamber, it will happen on any profile. The turning down after 5 mins - that may be something in the profile you're using?

    I think Greg's videos explain how to store profiles after roasting, there's a small window to do it after you empty the chaff tray?

    I'm going on memory as I sold my 2B a while ago.

    Cheers

    Sniff

  3. #3
    Senior Member DavidW1960's Avatar
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    Yes it's automatic. It seems that when you save a program it's only saving the heat setting. The turning down is in the auto profile which gets saved. As I turn it back to full it's only down for a minute and the profile saved adjusts it right back up as well.

    Yes - I can store profiles. I think what is confusing me is the profile is stored on the basis of time not temperature which is a little useless.

    Anyway I'm looking at trying to get Artisan to work in a full control mode as this seems to work on temperature but it's all a little cryptic so far.

  4. #4
    Senior Member Gavisconi007's Avatar
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    Quote Originally Posted by DavidW1960 View Post
    Yes it's automatic. It seems that when you save a program it's only saving the heat setting. The turning down is in the auto profile which gets saved. As I turn it back to full it's only down for a minute and the profile saved adjusts it right back up as well.

    Yes - I can store profiles. I think what is confusing me is the profile is stored on the basis of time not temperature which is a little useless.

    Anyway I'm looking at trying to get Artisan to work in a full control mode as this seems to work on temperature but it's all a little cryptic so far.

    Mine saves the profile exactly as it was on the roast just performed, including any fan or heat adjustments. The only thing it doesn't save is the point at which the beans are ejected.

  5. #5
    Senior Member DavidW1960's Avatar
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    Behmor Coffee Roaster
    So.....

    Eventually got Artisan running and controlling the roaster and it's a thing of beauty. Best thing is I can set it to control the roaster based on temperature not time.

    I have found this is incredibly consistent and first crack happens between 184C and 188C every time regardless of ambient temperature etc.

    Looking at Greg's video where he runs the KN-8828B-2 (manual one through it's paces) and I wrote down the triggers he was using to roast, then emulated that on the 2K+

    Pre-heat till 75C then add beans
    At 100C run fan on 75% for 20 seconds
    15 mins on timer, 140C reduce heat to 70% and fan to 25%
    13 mins on timer, 165C heat 70%, fan 50%
    9 mins on timer, 180C heat 70% fan 75%
    7 mins on timer, 195C Heat 40% fan 100%
    1:50 on timer, 202C end roast

    So I've been following that except I'm turning heat to 40% and fan to 100% at 190C instead of 195C

    Seems pretty good but I'm interested in what other people think is their best profile.
    SniffCoffee likes this.



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