Coffee Technology
Latest articles, industry insights and brewing guides
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 Use a Clever Dripper for Better Pour-Over Coffee
Learn the right way to brew coffee with a clever dripper: grind fresh, control time & temp, and get balanced results every time.
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.
How to Master Latte Art: Espresso and Milk Techniques
Learn the essential steps to perfect latte art with the right espresso, milk, and tools, including steam wand use and pouring technique.
How to Steam Milk for Silky Cappuccino Foam
Learn how to steam milk to 55–65°C with the right technique for smooth, velvety microfoam perfect for latte art.
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 Tamp Espresso for the Best Shot
Master the two-step espresso tamping process with light then firm pressure, a knock, and even force for optimal extraction.
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.