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Gene Cafe first roast

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  • askthecoffeeguy
    replied
    Re: Gene Cafe first roast

    I dont have a snobs card but the beans are much darker in real life if I have sufficient coffee tomorrow morning Ill reload and shoot again

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  • cjhfield
    replied
    Re: Gene Cafe first roast

    Its pretty hard to tell the true colour of beans from a photo given the variation of lighting exposure and computer display. Maybe if the snobs card was included in the photo it would make it easier to judge?

    Chris

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  • askthecoffeeguy
    replied
    Re: Gene Cafe first roast

    i think its a trick of the light, b/c when i tried photographing them indoors they looked very dark under artificial lighting, so I took my plate outside and photographed them under direct sunlight, which tends to have the opposite effect

    the green beans themselves were very small to start off with, thus the relatively short roasting time - my usual roasting time tends to be around the 17 to 18 min mark for larger beans, but i will upload some video of them pouring, once they have had time to degass

    cheers,

    pat

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  • gregpullman
    replied
    Re: Gene Cafe first roast

    You get them when you buy green beans from CS. The fact I asked for help on this indicates Im no roasting expert - maybe its the photo but they look a bit light for SC to me :-?

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  • askthecoffeeguy
    replied
    Re: Gene Cafe first roast

    dunno where do i get me one of those?

    i do know that they turned a nice caramel colour when roasting and that the colour change was very gradual. i pulled them at first sign of second crack, and as i said second crack was well established 2 to 3 mins into the cool down period...

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  • Dimal
    replied
    Re: Gene Cafe first roast

    How dark were they mate, using the CS Member Card?

    Mal.

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  • askthecoffeeguy
    replied
    Re: Gene Cafe first roast

    Hey greg - heres a look at some Cuban Altura Lavado that i roasted today on the Gene Cafe - I reckon they came up pretty good!

    Havent loaded a photo on this site befoe so Im taking a bit of a gamble.  Anyway I did my usual 180C preheat followed by 15.5min roast at 230C, when second crack first started to kick in, but it really became well established 2min into the cooling down process

    Fingers crossed heres hoping the image loads...

    Cheers,

    pat

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  • hojo
    replied
    Re: Gene Cafe first roast

    I quickly learnt not to follow the roasting guides in the booklet. Too hot and too long!

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  • JavaB
    replied
    Re: Gene Cafe first roast

    Originally posted by Lizzi link=1202214545/0#11 date=1202360015

    by the way, i only just saw you have aquired a HT... congrats, JB, more toys to play with!!

    L
    Yep, got to have more toys to play with (or should that read - modify so they will do things they were never designed to do : - all in pursuit of that perfect espresso

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  • Lizzie
    replied
    Re: Gene Cafe first roast

    thanks, JB, enlightening as usual!!

    i clean my Gene drum every 5 or 6 roasts, but it makes no difference to the roast times :-?

    by the way, i only just saw you have aquired a HT... congrats, JB, more toys to play with!!

    L

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  • JavaB
    replied
    Re: Gene Cafe first roast

    Lizzi,

    Real drum roasters (commercial ones) that seems to be the case....

    But home drum roasters (like my Hottop) definitely seem to benefit from keeping the drum clean (HT recommend the dishwasher every 5th roast).... and when I received my preloved HT the drum was well seasoned! I did one roast as was, then cleaned the drum by soaking in cafetto.

    The roast time after cleaning was a lot shorter - and I suspect this might be the problem with HT users who complain that their roaster is taking longer for roasts.... The drum by the way, unlike many (most)?? commercial roasters - is perforated. I imagine the oil layer would reduce the amount of heat conduction between the drum and the beans...

    Now the Gene sits between say a drum roaster (ideally a solid drum) and the Corretto - it being mainly a hot air roaster.... so I dont think the coffee oil on the walls would add to or subtract from the flavour..... just obscure your view of the beans whilst roasting...

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  • Lizzie
    replied
    Re: Gene Cafe first roast

    in regards to residual coffee- oil on the drum.... if that scalds the beans, wouldnt that happen with the commercial drum roasters as well?
    i thought that a well seasoned drum was part of the temperature stability and flavour profile of drum- roasters... as i recall, Dennis went through 30kg+ in seasoning his Diedrich... :-/
    thoughts??

    L

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  • gregpullman
    replied
    Re: Gene Cafe first roast

    Thanks Pat, guess one good thing about the Gene is you do have that control over temp to be able to fiddle. I cleaned out the roasting chamber just with detergent and water and shook it all around for a while but theres still some oil on the glass. Good thought.

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  • askthecoffeeguy
    replied
    Re: Gene Cafe first roast

    Ive found I get the best results and a very even roast from my machine by preheating to 180C and roasting at 230C for anywhere between 16 to 18min (though sometimes a bit less if the beans are smaller)

    I tried dropping the temp back on my machine a bit but found that this left a lot of chaff still clinging to the beans, but a lower roast temp produced a much sweeter roast (albeit with less complexity)

    My machine also seems to prefer a two scoops of beans slightly overfilled - which seems to improve temperature stability

    Also try cleaning the inside of the drum (I use a long-handled soft-bristled scrubbing brush and hot soapy water) after each roasting process, as any build up of oil can scold the beans

    Cheers,

    Pat


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  • gregpullman
    replied
    Re: Gene Cafe first roast

    Thanks Chris x2.

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