Our journal

Discover stories brewed with purpose.

Welcome to the Ozone Coffee Journal, a space for thoughtful reflections, insights, inspiration, and behind-the-scenes stories from the world of specialty coffee. From sustainability and sourcing to brewing tips and community impact, our journal explores what makes coffee culture so vibrant. Dive in and stay connected with the people, places, and passions that shape every cup.

  • The Problem With the C Market (and a Tool That's Helping Fix It)

    First published November 2019 For many years, commercial coffee has been traded on something called the "C market". This commodity coffee is often sealed...

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  • Coffee Production in Colombia

    First Published November 11th, 2013 by Stephen Leighton Colombia is one of those coffee origins that barely needs an introduction. It's been synonymous with...

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  • Kenya's Coffee Auction System Explained

    Originally written by Stephen Leighton in March 2013 and updated to reflect how the system has evolved since. Kenya produces some of the most...

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  • Ethiopia and the Specialty Coffee Trade: A Complex Relationship

    Originally written by Stephen Leighton in March 2013. Some things have changed since – but the underlying tensions he describes are still worth understanding....

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  • What is Coffee Cupping?

    Cupping is how we taste and evaluate coffee professionally – but it's not just for the trade. Done at home with a couple of...

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  • Coffee production in El Salvador

    Originally written by Stephen Leighton in August 2012. Updated August 2026. El Salvador's 2012/13 harvest was the last good one. Coffee leaf rust hit...

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  • How Hasbean Began

    Hasbean and Ozone joined forces in 2018, and the two businesses rebranded together as Ozone at the start of 2024. The company we are...

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Looking for more coffee knowledge?

Below you’ll find links to further resources on our website - from brewing guides and sustainability insights to sourcing stories and community updates. Whether you're a curious home brewer or part of the coffee trade, there's something here you might enjoy exploring.

  • Coffee Processing Explained

    Explore how different coffee processing techniques, from washed to natural and beyond, shape flavour, quality, and sustainability.

  • Coffee Varietal Guide

    Discover the unique characteristics of different coffee varietals and how they influence flavour, quality, and cultivation.

  • In My Mug Episode Archive

    Catch up on past editions of our In My Mug subscription and discover the stories behind each featured coffee.

  • Wholesale Case Studies

    See how our wholesale partners bring specialty coffee to life in their own unique spaces, with insights into their journeys and collaborations.