Coffee Technology
Latest articles, industry insights and brewing guides
Do Roasting Skills or Green Bean Quality Matter More?
Green bean quality sets the upper limit of flavor potential, but skilled roasting maximizes it. Here’s how both shape your final cup.
How Much Weight Do Coffee Beans Lose During Roasting?
Coffee beans lose 15–20% of their weight during roasting due to moisture loss and chemical changes like CO₂ release. Learn what causes the loss and how it affects roast.
How to Practice Latte Art with Water for Better Stability
Learn to improve latte art stability and pouring control by practicing with water before milk—three simple steps with measurable height and flow.
Mandheling vs Golden Mandheling Coffee from Sumatra
Discover the key differences between Indonesian Mandheling and Golden Mandheling coffees from Sumatra, including processing, taste, and grading.
What Defines Specialty Coffee? The Full Crop-to-Cup Guide
Specialty coffee means more than just great flavor—it’s a complete process from high-quality beans to expert brewing. Here’s the full breakdown.
The Five Layers of a Coffee Cherry Explained
A coffee cherry has five distinct layers—from outer skin to the seed. Here’s what each one is and why only one becomes your cup.
When Was the First International Coffee Day?
The first official International Coffee Day was October 1, 2015 — here’s how it happened, who set it, and why it matters.
Starbucks' Founders Were All Trained by Coffee Legend Alfred Peet
The three original Starbucks founders were all students of Alfred Peet, the godfather of specialty coffee. Learn how Peet shaped early US specialty coffee culture.
How Alfred Peet Invented American Specialty Coffee
Alfred Peet founded Peet’s Coffee & Tea in 1966, inspiring Starbucks and shaping modern specialty coffee through deep-roast techniques and education.
Siphon Coffee Brewing: Key Techniques and Common Mistakes
Learn the proper way to brew with a siphon, including key techniques like stirring, cooling, and filter care, plus mistakes to avoid.
How Much Caffeine Is Really in a Cup of Coffee?
A European study reveals caffeine content varies by bean type and brew method—here’s what 150ml of espresso typically contains.
How to Brew Coffee Using a Drip Cone and Filter Paper
Learn how to make a 480g pour-over using a drip cone, 25–30g of coffee, and a three-pour method with water at 90°C.
How to Start Latte Art: Tools and Techniques for Beginners
Learn the basics of latte art, including free pouring and etching, essential tools, milk foam methods, and cup choices for beginners.
How to Descale a DeLonghi Coffee Machine (Fixing the Flashing Red Light)
Your DeLonghi coffee machine flashes a red cleaning light when it needs descaling. Here’s exactly how to do it, including steps and DeLonghi descaler use.
De'Longhi ESAM400 Warning Light Meanings Explained
Learn what De'Longhi ESAM400 coffee machine warning lights mean—steady, blinking—and how to fix common issues like low water, full grounds, or scale buildup.
Decoding Common Coffee Machine Error Messages in English
Learn what your coffee machine’s English alerts like 'BREWUNIT BLOCKED' or 'DESCALING' really mean — and how to fix them quickly.
Indonesia Coffee Harvest and Processing Methods Explained
Learn how Indonesian coffee is harvested, processed via natural or washed methods, and sorted before export—step by step.
How Coffee Beans Are Processed After Harvest
Learn the key steps in wet and dry coffee processing, including drying times, fermentation, and sorting for green bean quality.
From Seed to Harvest: The Journey of Coffee Cherries
Learn how coffee goes from seed to harvested cherry, including growth timelines, species differences, and picking methods.
What Is Coffee Semi-Washed Process and How It Works
Learn the origin and steps of the coffee semi-washed (pulped natural) process, its stability compared to washed and natural methods, and why it’s misunderstood.