Coffee Knowledge
Latest articles, industry insights and brewing guides
What Is Coffee Latte Art and How Did It Begin?
Latte art is the visual and textural craft of pouring steamed milk into espresso, evolving from performance art to a skill balancing appearance, taste, and texture.
How to Use a Semi-Automatic Espresso Machine Step by Step
Learn how to pull a proper espresso shot and steam milk with a semi-auto machine using the right tools, dose, and technique.
What Is the Coffee Industry and How Does It Work?
Discover the global coffee industry's scale, supply chain, and impact — from 4000 billion cups yearly to the journey from farm to cup.
Why Your Moka Pot Coffee Tastes Bitter or Sour
Fix bitter or sour moka pot coffee by adjusting grind size, roast level, and brew technique. Learn what causes common extraction flaws.
How a Siphon Coffee Maker Works and How to Use It
Learn how a siphon (vacuum) coffee maker brews coffee using vapor pressure, what grind and beans work best, and how to clean it properly.
How to Make Pour-Over Coffee: Step-by-Step Guide
Learn the complete pour-over coffee method, including bloom, three pours, and ideal water temperatures for optimal extraction.
Pour-Over Coffee: Best Water Pouring Technique for Beginners
Learn the proper stance, hand position, and pouring method for stable, controlled pour-over brewing with clear steps for beginners.
How to Brew Pour-Over Coffee: Step-by-Step Guide
Learn how to make pour-over coffee with exact steps for folding filters, grinding, blooming, pouring, and serving. Includes temperature and ratios.
How to Control Your Pour-Over Coffee Variables
Master your pour-over coffee by managing grind size, water temp, dose, time, and pour rate for consistent results.
What Is Fancy Coffee and How Is Latte Art Done?
Learn what defines fancy coffee, why espresso-based drinks dominate, and how traditional vs non-standard styles differ in popularity and technique.
Geisha Coffee: The Bean That Beat the World
How a rare Ethiopian coffee variety from Panama became the most awarded and expensive specialty coffee in history.
What Is Jamaica Blue Mountain Coffee?
Learn what makes Jamaica Blue Mountain coffee rare, expensive, and uniquely balanced—with details on its origin, grades, and proper brewing.
The Three Basic Methods of Brewing Coffee
Learn the three foundational coffee brewing methods—Arabic, filtered, and espresso—and how they differ in pressure, filtration, and flavor.
How to Read the SCAA Coffee Tasting Wheel
Learn how the SCAA coffee flavor wheel breaks down positive and negative aromas, tastes, and processing flaws in specialty coffee.
What the SCAA Coffee Taster’s Flavor Wheel Actually Means
Understand the SCAA Coffee Taster’s Flavor Wheel: breakdown of positive and negative flavor categories, how they form, and how they relate to processing and roasting.
How to Identify and Remove the 10 Types of Defective Coffee Beans
Learn how to spot and eliminate 10 common types of defective coffee beans during manual sorting to protect your roast quality.
How Coffee Drinks Are Categorized: A Practical Guide
Learn how all coffee drinks break down into three types—base coffee, flavored coffee, and iced coffee—and why the classification matters for brewing.
How Coffee Beans Are Graded: Altitude, Size, and Defects
Learn how coffee-producing countries classify green beans using altitude, screen size, and defect counts—key factors behind your cup’s quality.
What Is Coffee Cupping and How Does It Work
Learn how professional coffee tasters evaluate beans through cupping: steps, sensory focus, scoring, and how you can try it yourself.
Understanding Coffee Roast Levels: From Light to Dark
Learn how to identify coffee roast levels by sound, color, and aroma, and how SCAA Agtron numbers define roast depth.