What Is the Relationship Between Bean Size and Caffeine Content?

June 19, 2026

A buyer from a cold brew company in Texas asked me a question that most coffee people get wrong. He…

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How to Identify Past Crop Coffee Using UV Light?

June 19, 2026

A buyer from a large European roastery called me with a problem. He suspected a shipment of supposedly fresh crop…

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What Are the ICO Indicator Prices Telling Us About 2027 Trends?

June 19, 2026

A buyer from a large European importing company called me in February asking for my read on the ICO composite…

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How to Read a Coffee Leaf Rust Report from Yunnan?

June 19, 2026

A buyer from a Scandinavian roastery asked me for the latest coffee leaf rust report from Yunnan before placing his…

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What Is the Best Brix Level for Coffee Cherries at Harvest?

June 19, 2026

A buyer from a Japanese specialty roaster visited our Yunnan plantation during harvest season last year. He walked into the…

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How to Identify Quakers in a Roasted Batch from a Bad Green Sample?

June 18, 2026

A roaster from Denver called me after cupping a new Yunnan lot we had sent him. He was puzzled. The…

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What Is the TDS of Coffee Cherry Juice and Why Does It Matter?

June 18, 2026

A specialty buyer from Japan was visiting our Yunnan plantation last year and asked a question I had never been…

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How Does the Maillard Reaction Differ in Low Density Beans?

June 18, 2026

A roaster in Portland called me after struggling with a batch of natural process Yunnan. He could not get the…

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What Is the Specific Heat Capacity of Green Coffee in a Drum Roaster?

June 18, 2026

A roaster in Melbourne once asked me a question that stopped me in my tracks. He wanted to know the…

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How to Calibrate a Probat Roaster for Dense Asian Washed Beans?

June 18, 2026

A roaster in Chicago called me after his first attempt at roasting a shipment of washed Yunnan from our plantation.…

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