Latest Posts

  1. The Return of Ethiopiques

    The Return of Ethiopiques

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  2. A Pair of Ethiopias, Cold Brewed with a Bruer.

    A Pair of Ethiopias, Cold Brewed with a Bruer.

    Cold brew coffee can have more tastes than just caramel and chocolate.

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  3. Video: Coffee Leaf Tea - ቁጢ , Kuti, Keti, Koti

    Video: Coffee Leaf Tea - ቁጢ , Kuti, Keti, Koti

    Brewing coffee leaf tea

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  4. All About Coffee Brewing

    All About Coffee Brewing

    Sign up for our coffee brewing crash course

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  5. Behmor Roast Profile: Ethiopiques 2.0

    Behmor Roast Profile: Ethiopiques 2.0

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  6. Espresso Basics & More

    Espresso Basics & More

    Sign up for our espresso basics class

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  7. All About The Clever Coffee Dripper

    All About The Clever Coffee Dripper

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  8. Choosing a Pour Over Brewer

    Choosing a Pour Over Brewer

    Three questions you should ask yourself.

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  9. Aeropress Plunger Cleaning

    Aeropress Plunger Cleaning

    If your Aeropress plunger is excreting some sticky stuff. Don't worry, it's harmless but you probably still want to know how to clean it off, right?

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  10. Video: Metal Aeropress Filters

    Video: Metal Aeropress Filters

    Have fun pushing coffee through these metal Aeropress filters.

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  11. Moka Pot Brewing (Stovetop Espresso)

    Moka Pot Brewing (Stovetop Espresso)

    These are some basic instructions that you will, undoubtedly, adapt and refine to suit your purposes...

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  12. Espresso: Choosing the Right Coffee for Espresso

    Espresso: Choosing the Right Coffee for Espresso

    Usually, an espresso blend must be blended for balance, or particular varietal qualities that would be favorable in a drip coffee might overwhelm the espresso extract.

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Clear or Cloudy Coffee? An Open Question.

Clear or Cloudy Coffee? An Open Question.

Mar. 6, 2018

Coffee brews clear or cloudy, usually depending on the filtration. Paper filters will normally brew clear, where's metal filters allow a degree of soluble solids to pass into the brew, which is more opaque.

But here's an open question: why does coffee that brews fairly translucent become opaque as it cools? Do you have an explanation? Why is paper-filter brewed coffee less transparent as it cools?

The coffee in this little video is that same in both cups but one was cooled to about 95f and the other is about 128 or so. Can you see the difference?