Latest Posts

  1. Podcast Episode 19: Kenya Coffee: Growing, Trading and Marketing

    Podcast Episode 19: Kenya Coffee: Growing, Trading and Marketing

    A while back we had Mary Maina Manyeki visit us in Oakland, and had a great conversation about her experiences as a Kenya coffee farmer.

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  2. The New Postcard

    The New Postcard

    We are really proud of our latest postcard because it captures an aspect of one of Tom's photographic projects; shooting realistic macro photos of coffee beans.

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  3. Sweet Maria's Green Coffee Sample Sets

    Sweet Maria's Green Coffee Sample Sets

    The ultimate order-ahead-of-time-pre-holiday-non-procrastinator-thing-you-can-buy-from-us-right-now

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  4. New Macro Videos

    New Macro Videos

    An inside look at parchment coffee and Kenyan coffee grades

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  5. Kenya Coffee Grades

    Kenya Coffee Grades

    A geeky macro video of the various grades and types of Kenya coffee. Some of this information can apply to wet processed coffee elsewhere too! -Tom

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  6. Sweet Maria's Product Guide: Roasted & Green Coffee Storage

    Sweet Maria's Product Guide: Roasted & Green Coffee Storage

    ...because you gotta put it somewhere.

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  7. Sumatra Aceh Mandheling Preparation Notes

    Sumatra Aceh Mandheling Preparation Notes

    Just some quick comments on the benefits to pre-sort this lot of Sumatra before roasting

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  8. The Amazing Spider Graphs

    The Amazing Spider Graphs

    ...fighting the crime of buying bad coffee

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  9. Adios! We're Out! Hooray!

    Adios! We're Out! Hooray!

    No more Centrals, and that's a good thing.

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  10. New Postcards...With a Lot of Information About Dry Processing

    New Postcards...With a Lot of Information About Dry Processing

    It's much more than just dehydration.

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  11. Roasted Coffee Macro Images

    Roasted Coffee Macro Images

    This photo gallery has a collection of extreme close ups of roasted coffee beans.

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  12. Podcast: Ferment in Colombia with Leo

    Podcast: Ferment in Colombia with Leo

    Breaking down coffee...literally

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Roasted Coffee Macro Images

Roasted Coffee Macro Images
  1. Roasted Coffee Macro Images

    This is a softer bean, lower grown coffee at a light roast stage. The large air gaps are interesting.

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  2. Roasted Coffee Macro Images

    This coffee has entered 2nd crack, and the increased porousity is eveident, as well as pockets of migrating oils.

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  3. Roasted Coffee Macro Images

    The bean shatters when cut, and is very soft, which is why it grinds so differently than lighter roasts. Note the expanded volume.

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  4. Roasted Coffee Macro Images

    Note the porosity of the bean, and the interior cavities. We think of coffee as a solid mass, but this is very wrong.

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  5. Roasted Coffee Macro Images

    Notice surface and sharper edges to the flat side of the "bean"

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  6. Roasted Coffee Macro Images

    A typical City+ roast of a dense Central American coffee. A macro image shows how much texture and variation there is to the surface color.

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  7. Roasted Coffee Macro Images

    Oil-glazed surface of a French Roast coffee bean, so expanded it no longer fits the frame!

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  8. Roasted Coffee Macro Images

    What the mix of wet-process and Miel pulp natural process parchment looks like after roasting.

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  9. Roasted Coffee Macro Images

    Swollen French Roast coffee, note the rounded edges indicating expansion of the form, even surface color and texture, glaze of oils. This coffee has carbony flat flavor at this degree of roast. Sweet Maria's Coffee

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  10. Roasted Coffee Macro Images

    Swollen French Roast coffee, note the rounded edges indicating expansion of the form, even surface color and texture, glaze of oils. This coffee has carbony flat flavor at this degree of roast. Sweet Maria's Coffee

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  11. Roasted Coffee Macro Images

    Extreme surface texture from this particular bean. Pre 2nd crack for sure... Sweet Maria's Coffee

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  12. Roasted Coffee Macro Images

    Note surface texture, the flat side appears quite flat, and the sharper edges. Sweet Maria's Coffee

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  13. Roasted Coffee Macro Images

    Surface texture and color of C+ roast level Sweet Maria's Coffee

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  14. Roasted Coffee Macro Images

    Medium roast of a large Pacamara coffee bean. Pacamara has a craggy crease in it. Sweet Maria's Coffee

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  15. Roasted Coffee Macro Images

    Color and surface texture of a Full City+ roast coffee bean, with a few snaps of 2nd crack. Note opening of crease. Sweet Maria's Coffee

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  16. Roasted Coffee Macro Images

    Rounded Peaberry bean form, chaff/silverskin in the crease, some opening of the crease, at Full City roast level. Sweet Maria's Coffee

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  17. Roasted Coffee Macro Images

    Extreme surface texture from this particular bean. Pre 2nd crack for sure... Sweet Maria's Coffee

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  18. Roasted Coffee Macro Images

    This coffee seed has not fully gone through 1st crack. Note light patches in surface and the tightly closed crease, as well as sharp bean edges. Sweet Maria's Coffee

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