Coffee Technology
Latest articles, industry insights and brewing guides
Understanding Coffee Roast Levels and Their Flavors
Learn how Agtron numbers define coffee roast levels and how roast depth affects flavor, acidity, and caffeine. Explore the debate between light and dark roasts.
Drum vs Air Roasters: The Two Main Schools of Coffee Roasting
Learn how drum and air roasters shape coffee flavor, from slow development to fast roasting, and why pros debate their merits.
The Three Levels of Coffee Roasting Mastery
Learn the three tiers of coffee roasting skill—from basic competence to artistic expression—and where your technique stands.
Key Chemical Reactions During Coffee Roasting Explained
Discover the core chemical changes in coffee roasting—like caramelization, cellulose breakdown, and acid formation—that shape flavor and aroma.
How to Identify Coffee Roast Levels Using SCAA Standards
Learn how coffee roast levels are defined, from light to dark, using Agtron color charts and roast timing based on first and second crack.
The Ideal Coffee-to-Water Ratio for Brewing
Learn the standard and enthusiast coffee-to-water ratios, with exact weight and volume measurements for every cup, from 1 to 12.
How to Tell Freshness and Store Coffee Beans Properly
Learn how to identify fresh coffee beans by smell, sight, and touch, and store them to preserve their flavor with these expert tips.
The Origins and Techniques of Coffee Latte Art
Learn where coffee latte art came from, how it evolved, and the key techniques used to create it, including both pouring and etching.
How to Brew Coffee at Home in Three Steps for Your Perfect Cup
Learn how to brew a personalised cup of coffee at home in three key steps: grinding, brewing, and serving. Discover the tools and methods that bring out your ideal flavour.
Why the French Press Is Called a Lazy Brewer — And How to Use It Right
The French press is called 'lazy' because it’s easy: just add coffee, pour hot water, wait, then press. Here’s how it works and why it tastes so good.
Common Coffee Brewing Methods Explained
Learn how pour-over, French press, siphon, Moka pot, and electric brewers work—with ideal temps, grind sizes, and key pros and cons.
How Steam Volume Affects Latte Art Milk Frothing
Find out why you shouldn’t fully open your steam wand when frothing milk for latte art — and how to control steam volume like a pro barista.
How Milk Foam Affects Latte Art in 7 Key Ways
Learn how milk temperature, fat content, foam thickness, and more impact your latte art results — with exact numbers for baristas.
How to Steam Milk for Latte Art: Milk Foam Fusion Explained
Learn how to judge milk foam fusion with espresso and why it matters for both latte art and flavor. Includes fusion timing tests and key steam wand tips.
How Milk Foam and Crema Work in Latte Art Physics
Learn how surface tension, foam stability, and crema create the patterns in latte art through fluid dynamics—explained for baristas.
How Milk Foam and Milk Fusion Affects Latte Art
Learn how the fusion of milk foam and steamed milk impacts latte art clarity and coffee taste. Understand fusion levels and how to judge them.
How to Control Milk Flow for Latte Art Pouring
Learn to control milk flow speed for stable pours and clean latte art. Master three essential water-pouring drills using a pitcher.
How to Assess Coffee Bean Quality Through Cupping Terms
Learn how to evaluate coffee quality using professional cupping terms for acidity, body, aroma, and flavor. Covers both desirable and off notes.
How to Make Ice Drip Coffee with Wine-Like Flavors
Learn how to make slow-brewed ice drip coffee with rich, wine-like aromas using precise water flow, grind size, and 12-hour extraction.
The Complete Guide to Coffee Bean Roasting Stages
Learn the essential stages of coffee roasting—from dehydration to cooling—with timing, temps, and techniques for optimal flavor.