Latest Posts

  1. A Guide to Air Roasters

    A Guide to Air Roasters

    When blowing hot air gives you solid results

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  2. Behmor Espresso Roast Profile: Peru FTO Don Rigoberto

    Behmor Espresso Roast Profile: Peru FTO Don Rigoberto

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  3. How to Roast Coffee (circa 1850) !

    How to Roast Coffee (circa 1850) !

    When roasting at home was the primary method, and buying from a shop was your plan b !

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  4. The Golden Bean Bronze Medal Bullet Profile

    The Golden Bean Bronze Medal Bullet Profile

    Check out Julio's award winning profile.

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  5. Behmor Roast Profile: Burundi Kayanza Gahahe

    Behmor Roast Profile: Burundi Kayanza Gahahe

    Taking the "light and bright" approach to roasting Burundi Gahahe on the Behmor 1600+

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  6. Roasting Different Batch Sizes of Burundi on the Behmor 1600+

    Roasting Different Batch Sizes of Burundi on the Behmor 1600+

    What happens when you roast a coffee to the same roast level but at different rates of development?

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  7. Behmor Roast Profile: Burundi Kayanza Dusangirijambo Coop

    Behmor Roast Profile: Burundi Kayanza Dusangirijambo Coop

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  8. Live Stream: Intro to Home Roasting

    Live Stream: Intro to Home Roasting

    Roasting with an electric popcorn popper is easy! Watch our online, interactive demo on 9/6 and we'll show you how.

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  9. Roasting Flores Gunung Gedha on a Popcorn Popper and Quest M3s

    Roasting Flores Gunung Gedha on a Popcorn Popper and Quest M3s

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  10. Coffee Roasting Demo at The Berkeley Public Library

    Coffee Roasting Demo at The Berkeley Public Library

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  11. Coffee Roasting Basics: Nerd Nite Silicon Valley 6/25

    Coffee Roasting Basics: Nerd Nite Silicon Valley 6/25

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  12. Aillio Bullet R1 Roaster: Testing Airflow with Rwanda Kageyo

    Aillio Bullet R1 Roaster: Testing Airflow with Rwanda Kageyo

    A look at two extreme examples of airflow settings on the Bullet and how they affect roast development.

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Behmor Plus Drum Speed Comparison

Behmor Plus Drum Speed Comparison

August 25, 2014

A faster drum in a Behmor means that the coffee gets pulled farther up the back of the drum during roation which exposes the bean mass to more heat from the the upper heat element in the back of the roaster. This actually shortens roast time which might be a good thing for folks dealing with roasters that aren't getting hot enough in the time the Behmor 1600 allows.

We roasted 2 half pound batches of Ethiopia Sidama Dereje Station to a city roast level using the slow and fast speeds. The slow drum batch went into the cooling cycle after 11 minutes and 15 seconds. The fast drum batch started cooling at 10 minutes and 45 seconds.  After 2 days, we compared the grind color.