Coffee Cup Rainbow

    If you look into a coffee cup as soon as it is poured, the foam bubbles have an iridescence to them, caused by the natural oils within the beans that have just been released by the grinding process. This is the same oil that coats beans that have been darkly roasted, like espresso beans. The oils, then, are released as the hull fractures during the extended roasting time and covers them.
    View Large to really see the colors!

    Comments and faves

    1. trelkovski (41 months ago | reply)

      Bright idea, wonderful effect

    2. ♣Cleide@.♣ (41 months ago | reply)

      Beautiful photo and effects!
      Thanks for sharing your
      colorful world group logo
      with the Colorful World group pool.

    3. ROCKADEE - Rockey & Dee (41 months ago | reply)

      That's Cool, Jeff!

    4. ★

      Romulo fotos and Sadeem Q added this photo to their favorites.

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