Latest Posts

  1. New Video: Air Roasts - Closeup on Roast Levels

    New Video: Air Roasts - Closeup on Roast Levels

    Lighting and other factors can help you look at air roasted coffee

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  2. POSTPONED - Online Event - Sensory Series 101 - March 18th

    POSTPONED - Online Event - Sensory Series 101 - March 18th

    Join us online and compare coffee flavors to familiar foods and drinks

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  3. Roasting Fundamentals: Getting Started with Decaf Coffee

    Roasting Fundamentals: Getting Started with Decaf Coffee

    Tricky to roast but better tasting than ever.

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  4. Quakers and Taste - 2020 Sensory Summit

    Quakers and Taste - 2020 Sensory Summit

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  5. Sumatra: Arabica Varieties in Aceh

    Sumatra: Arabica Varieties in Aceh

    This is a list of coffee varieties / cultivars found in Aceh and more broadly in Sumatra, Indonesia

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  6. Q & A: Dry Fermenting?

    Q & A: Dry Fermenting?

    We kick off our Q & A with a customer question about fermentation!

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

    Coffee Roasting Basics: Nerd Nite Silicon Valley 6/25

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  8. Espresso Basics & More

    Espresso Basics & More

    Sign up for our espresso basics class

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  9. Video: Sample Roasting with an Aillio Bullet R1

    Video: Sample Roasting with an Aillio Bullet R1

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  10. Video: Larry Cotton's Sifter Coffee Roaster

    Video: Larry Cotton's Sifter Coffee Roaster

    Sweet Maria's Customer Larry Cotton blows our mind again

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  11. Video: Dry Process Coffee & Quakers

    Video: Dry Process Coffee & Quakers

    How we grade for the quality of our dry process coffees

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  12. New Postcards. Quakers: Resistant to Roast

    New Postcards. Quakers: Resistant to Roast

    Our new postcards. Look for one in your next order.

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coffee seed structure and defects

coffee seed structure and  defects
 coffea arabica - coffee plant root structure and early leaf formation layers of the coffee fruit: endosperm (the green seed/bean), endocarp, mesocarp, exocarp.
the formation of the coffee flower and then the fruit development of the green coffee bean in the cherry
black bean defect in green coffee (and parital black bean defect) sour defect (vinegar defect)
blotchy - moldy sours
floaters moldy coffee beans
transverse cut of a healthy, fully developed coffee seed/ green bean cellular "compartment" structure of a healthy green coffee bean with "full" content of proteins, lipids, etc.
closer view of cellular "compartment" structure of a healthy green coffee bean with "full" content of proteins, lipids, etc.  underdeveloped, immature coffee bean, with insufficient cellular content
closer view of the the black bean defect (microbial attack of the coffee bean) with destroyed cell content black bean defect (microbial attack of the coffee bean) with destroyed cell content

 


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