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Thread: Carcinogenic?

  1. #1
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    Carcinogenic?

    Gene Cafe Coffee Roaster $850 - Free Beans Free Freight
    When I told a coffe shop owner I roast my own beans, he said the fumes/smoke during roasting are carcinogenic.

    Is there any truth in this??

  2. #2
    Senior Member greenman's Avatar
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    Re: Carcinogenic?

    Not sure.............but Ive done 100 roasts and Im still here!!

  3. #3
    Senior Member flynnaus's Avatar
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    Re: Carcinogenic?

    Quote Originally Posted by greencardigan link=1213154973/0#0 date=1213154973
    When I told a coffe shop owner I roast my own beans, he said the fumes/smoke during roasting are carcinogenic.

    Is there any truth in this??
    I believe the fumes from coffee roastiing contain acetylaldehyde, a "probable" human carcinogen - possibly same risk as passive smoking

    http://www.mindfully.org/Plastic/Monomers/Acetaldehyde-MSDS.htm

    While I am not a coffee roaster I imagine roasting in a ventilated area would be advisable.

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    Re: Carcinogenic?

    Quote Originally Posted by greencardigan link=1213154973/0#0 date=1213154973
    When I told a coffe shop owner I roast my own beans, he said the fumes/smoke during roasting are carcinogenic.

    Is there any truth in this??
    Dont know that they are carcinogenic, but some nasty gases can be introduced into the coffee while its being roasted, depending on how they are roasted....eg. naked flame burners where air heated by the flame and used as convective heat will indeed include a good dose of VOC gases. These also affect flavour. The darker the roast, the more carbonation too. Other methods like, IR, gene, Coretto, and the humble popper, arent in the same league as open flame burners (incl. BBQ roasters, perforated drums) IMHO.

    BBQd meat is also said to be carcinogenic - probably for similar reasons. I guess if you eat too much of anything its not the best for your health.

    ;)

  5. #5
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    Re: Carcinogenic?

    Most smoke would be carcinogenic. I guess the usual precautions are necessary... We use a fan to blow away chaff and smoke for our Corretto set up. Really, theres not a lot of smoke even visible until you get to larger loads (500g or so).

    On the other hand, most large-scale commercial roasters have large exhaust burners which limit the exhaust output to CO2, H2O and some simpler smoke-constituents. This would burn off the acetylaldehyde.

    Cheers
    Stuart.

  6. #6
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    Re: Carcinogenic?

    I like to smell the coffee when its roasting.....

    I should get tested....

  7. #7
    Wine_of_the_Bean
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    Re: Carcinogenic?

    In 100% of cases, the leading cause of death on this planet is life...Enjoy it while you can and dont get so caught up in what will shorten your life, else youll shorten it even further worrying about everything.

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    Re: Carcinogenic?

    Everything in moderation........

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    Re: Carcinogenic?

    Quote Originally Posted by Wine_of_the_Bean link=1213154973/0#6 date=1213177390
    In 100% of cases, the leading cause of death on this planet is life...Enjoy it while you can and dont get so caught up in what will shorten your life, else youll shorten it even further worrying about everything.
    This will have to be the quote of the day!!!

  10. #10
    22a
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    Re: Carcinogenic?

    On a related kind of note. I find when Ive been out roasting for a while I get a noticeable buzz, similar to a caffiene hit. I roast outdoors but catch a good amount of smoke and smells from the roast as I like to watch over it pretty closely. Anyone else find this? Or is this just me getting too excited about roasting?

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    Re: Carcinogenic?

    Thats a great phlosophy of life Nunu 1 I try to follow, I think NIKE said it well a few years ago Life is short! Play hard.
    I think you will find a lot of our jobs are carcinogenic, but if we take some precautions we can all live a long life. The stress of worrying what is gonna kill us will ultimately lead to death.
    So I say have fun roasting and drinking your coffee.

  12. #12
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    Re: Carcinogenic?

    Hi all
    I concur with 22a, I can get the same sensation when roasting multiple batches in one it.

    If i use the fan to blow away smoke etc. then this tends not to happen

  13. #13
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    Re: Carcinogenic?

    yup everything in moderation including moderation

  14. #14
    Senior Member flynnaus's Avatar
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    Re: Carcinogenic?

    Yes, good point reubster. Nothing like the occasional dose of excess to ensure you understand the concept of moderation.

    Actually, I have this theory that one should indulge in junk food occasionally so your body doesnt become too complacent . Make sure your kidneys and liver dont get lazy, right?

  15. #15
    ev
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    Re: Carcinogenic?

    How much smoke do you produce when roasting??? Bugger all in my experience (corretto roasting with on-board fan). I pull my roasts at 2nd crack & drop into the cooler. If Im quick enough, I dont really see much smoke at all. Sounds like your coffee shop owner is protecting his business greencardigan.

    Evan.

  16. #16
    Sleep is overrated Thundergod's Avatar
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    Re: Carcinogenic?

    When I roast at night under a halogen spotlight I can see smoke constantly coming off the beans from before FC right through to the end.
    The amount varies during the roast.

    FOr example, the onset of SC can be spotted by an increase in smoke.




  17. #17
    ev
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    Re: Carcinogenic?

    Are you running a fan?

  18. #18
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    Re: Carcinogenic?

    I agree Thundergod, I see that onset of smoke at SC - its a helpful visual sign as whats going on. I also use a fan that blows on my HG and BM. It helps with dissipating the smoke.




  19. #19
    Sleep is overrated Thundergod's Avatar
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    Re: Carcinogenic?

    Quote Originally Posted by Evan link=1213154973/15#16 date=1213279158
    Are you running a fan?
    Yes.

    It blows the chaff away from the heatgun (and me).

  20. #20
    Flo
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    Re: Carcinogenic?

    I just got to the end of this thread about carcinogens and lo and behold the banner that was adjacent to TGs post was Dennis "Defibrillator...coffee to die for.." ;D

  21. #21
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    Re: Carcinogenic?

    Quote Originally Posted by Flo link=1213154973/15#19 date=1213335256
    I just got to the end of this thread about carcinogens and lo and behold the banner that was adjacent to TGs post was Dennis "Defibrillator...coffee to die for.." *;D
    I had a laugh...no animals/humans were harmed in the creation of the Defib - just had a lot of sleepless nights! ;D

  22. #22
    Senior Member Stan's Avatar
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    Re: Carcinogenic?

    Behmor Coffee Roaster
    I should buy some at my age and with all the stuff I have consumed that will cause cancer - heart attacks etc etc etc I may need a heart starter ::) ::)



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