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Thread: Roasting... affects strength?

  1. #1
    Senior Member simonsk8r's Avatar
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    Roasting... affects strength?

    Gene Cafe Coffee Roaster $850 - Free Beans Free Freight
    Ive heard two opposing sides (again) regarding the roasting process. Does roasting darker and darker decrease the strength of the bean (as in decrease caffeine content)? Or does it have no effect because caffeine has a very stable structure and wouldnt be affected?

    As far as i understood (and have read, which may or may not be legit), all arabica beans are the same caffeine content (robusta having a higher content), and the Strength indicator youll see on packets of coffee are actually based on the thought that because its roasted darker it isnt as strong, which i thought was incorrect.. (maybe its referring to a stronger taste as opposed to caffeine content..)

    This article here doesnt really clear things up for me either...:
    mod edit- link removed

    Thanks guys!

  2. #2
    A_M
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    Re: Roasting... affects strength?

    Quote Originally Posted by 6872767475687023691B0 link=1259200485/0#0 date=1259200485
    Ive heard two opposing sides (again) regarding the roasting process. Does roasting darker and darker decrease the strength of the bean (as in decrease caffeine content)? Or does it have no effect because caffeine has a very stable structure and wouldnt be affected?

    As far as i understood (and have read, which may or may not be legit), all arabica beans are the same caffeine content (robusta having a higher content), and the Strength indicator youll see on packets of coffee are actually based on the thought that because its roasted darker it isnt as strong, which i thought was incorrect.. (maybe its referring to a stronger taste as opposed to caffeine content..)

    This article here doesnt really clear things up for me either...:
    mod edit- link removed

    Thanks guys!
    Generalisation Vs facts Vs Have we got something to sell you etc..

    Which is better Super or Unleaded ?

    1: Observe and test.. *Show me any Decaf that is not a DARK roast... *Even after water and other treatments

    2: Caffeine is stable... Under what conditions... Me thinks NOT...

    3: Same caffeine content giggled like a schoolgirl - Abstract below... Mean / Average / 95% confidence/ Standard deviation etc etc

    4: If you want facts do some real research and ignore the ravings that are promoted on many so CALLED coffee sites.. (mod removed ). * Look for papers written and published by unis and other places that have a level of respect.. Even Wikipedia has better comments than many so called coffee forums etc

    FOR IE. *Genetics and Molecular Biology - CAFFEINE CONTENT OF ETHIOPIAN COFFEA ARABICA BEANS

    ABSTRACT

    The coffee germplasm bank of the Instituto Agronômico de Campinas has many Coffea arabica accessions from Ethiopia, which is considered the primary center of genetic diversity in coffee plants. An evaluation of the caffeine content of beans from 99 progenies revealed intra- and inter-progeny variability. In 68 progenies from the Kaffa region we found caffeine values in the range 0.46-2.82% (mean 1.18%), and in 22 progenies from Illubabor region these values ranged from 0.42 to 2.90% (mean 1.10%). This variability could be exploited in a breeding program aimed at producing beans with low-caffeine content.

  3. #3
    Senior Member simonsk8r's Avatar
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    Re: Roasting... affects strength?

    Yeah, i certainly do not just believe everything i read for the record, am merely just speaking what i have observed ;). Thank you, i will do some research on actual science-based sites, was just wondering whether anyone had come across whether roasting affects the caffeine content or strength..

  4. #4
    Senior Member GregWormald's Avatar
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    Re: Roasting... affects strength?

    Does strength relate to caffeine, taste, or intensity of taste?

    I suspect it is used for all three without differentiation or definition.

    Greg

  5. #5
    Senior Member simonsk8r's Avatar
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    Re: Roasting... affects strength?

    Behmor Coffee Roaster
    Im using the term strength in a strictly caffeine-content sense.



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