Coffee Technology
Latest articles, industry insights and brewing guides
What’s Inside Roasted Coffee? A Breakdown of Coffee Bean Compounds
Learn how coffee compounds like caffeine, fats, and acids change during roasting—and what that means for flavor and nutrition.
The Science of Coffee Roasting: From Bean to Brew
Learn how heat transforms green coffee beans into flavorful roasted coffee, including roasting stages, equipment types, and key chemical changes.
Espresso Roasting Essentials: How to Roast for Extraction
Learn how roast level affects espresso flavor, from bright Northern Italian to intense French-style roasts, and what works best behind the bar.
Where Does Coffee’s True Aroma Really Come From?
Coffee’s signature fragrance starts in the flower, ripens through fruit, and peaks via roast. Here’s how every stage builds the aroma.
10 Key Factors When Selecting Green Coffee Beans
Learn how to assess green coffee quality by inspecting size, color, processing signs, and sensory cues. These 10 expert tips help you choose better beans.
How to Make Latte Art: Milk Foam & Pouring Techniques
Learn how to steam milk to 60°C, texture it with 30 strokes, and pour latte art with a wrist-flick 'zigzag' and final straight line.
What to Know About Roaster Burners and Boilers: A Technical Look
An inside look at roaster burners, flame patterns, and boiler materials — including insights from a real HB-L2 maintenance session.
5 Common Milk Frothing Mistakes in Espresso Drinks
Avoid these five common mistakes when steaming milk for espresso drinks—learn what really improves texture and integration for better latte art.
How to Make Perfect Espresso with Latte Art in 3 Steps
Master the three essential steps—espresso extraction, milk steaming, and pouring latte art—for professional-quality cappuccinos and lattes at home.
Historical Coffee Facts: Legends and Early European Adoption
Explore early coffee myths, papal approval, and royal experiments that shaped Europe’s coffee culture in the 17th and 18th centuries.
Famous Specialty Coffees From Around the World and Their Flavor Profiles
Explore the taste, origin, and characteristics of rare and famous coffees like Kopi Luwak, Jamaican Blue Mountain, and Ethiopian Yirgacheffe.
19 Global Coffee Types and Their Flavor Profiles Explained
Explore 19 distinct coffee origins—from Brazil to Kenya—with detailed tasting notes on flavor, acidity, body, and roast preferences.
Common Espresso Problems and How to Fix Them
Fix weak, bitter, or crema-less espresso with these expert tips on grind size, water flow, puck prep, and machine settings.
How Espresso Crema Affects Latte Art
Yes, espresso crema affects latte art. Fresh, thick crema with good texture creates clearer, more vibrant designs.
How to Judge Espresso Crema: Speed, Color, and Texture
Learn how to assess espresso quality by evaluating flow rate, crema color, and texture. Key benchmarks: 22–28 sec extraction, golden-brown crema.
Why Fresh Coffee Beans Matter for Brewing Better Coffee
Freshness is the foundation of great coffee. Learn how storage time, roast date, and grinding impact your brew’s flavor and extraction.
How to Adjust Coffee Grind Size, Dose, and Tamping for Better Espresso
Learn how grind size, dose, and tamping pressure affect espresso extraction, and why your grinder’s setting isn’t the whole story.
How to Choose a Pour-Over Kettle for Brewing Coffee
Wondering why pour-over coffee needs a special kettle? Learn what makes a good gooseneck kettle and which models are best for beginners.
How to Choose a Professional Espresso Machine for Your Café
Choosing the right espresso machine is critical for café success. Here’s what matters: boiler type, pressure consistency, steam performance, and serviceability.
Why Hand Sorting Matters for Specialty Coffee Beans
Learn why hand sorting green coffee beans is essential to producing high-quality specialty coffee, and how much yield is lost in the process.