Coffee Knowledge
Latest articles, industry insights and brewing guides
How a Moka Pot Works: Structure and Brewing Principles
Learn how a moka pot brews coffee through steam pressure, its key components, and the science behind its classic extraction method.
Best Drip Coffee Maker: Braun KF510 Review
The Braun KF510 drip coffee maker makes 10 cups fast with a 1100W system and water filter—great for home brewing. Priced at 779 RMB (~$110).
Beginner’s Guide to Buying a Home Espresso Machine
Looking to buy a home espresso machine? Here’s how to choose between budget, mid-range, and high-end models — with key pressure and temp specs.
Common Espresso Brewing Equipment Explained
From moka pots to semi-auto machines, here’s how to make true espresso at home using the most common espresso brewers.
How 102 Coffee Filter Paper Improves Drip Coffee Maker Brews
Using 102 unbleached coffee filter paper in a drip coffee maker enhances extraction, clarity, and flavor by improving brew time and filtering fines.
Coffee Species Explained: Typica to Geisha
Learn why coffee species like Typica, Bourbon, and Geisha matter—each affects flavor, growth, and cup quality. Discover 15+ key varieties.
13 Surprising Facts About Coffee You Probably Didn’t Know
From dancing goats to battlefield bans, uncover 13 little-known truths about coffee’s origins, chemistry, and global impact.
Steam vs Pump Espresso Machines: How to Tell Them Apart
Learn how to distinguish steam-driven and pump-driven espresso machines by looking for key features like pressure output and control knobs.
How Single Boiler Heat Exchange Coffee Machines Work
Learn how early espresso machines used heat exchange to brew coffee while generating steam, and why FAEMA E61’s design improved temperature stability.
How to Use a French Press: Coffee-to-Water Ratio Guide
Learn the ideal French press coffee-to-water ratio, grind size, and brewing time to make rich, full-bodied coffee with your French press.
How Different Coffee Brewing Methods Actually Work
Learn how filter, moka, espresso, siphon & more extract coffee—every temp, ratio & method explained plainly.
What Is a French Press and How Do You Use It?
Discover the history, features, and brewing steps for French Press coffee, plus ideal grind size, ratios, and time for full-bodied results.
Why Cooling Coffee Beans Properly Matters for Freshness
Learn why quickly cooling roasted coffee beans is essential for flavor, aroma, and freshness—and how to do it right at home.
How a Popcorn Machine Was Turned Into a Coffee Roaster
A home experimenter modified a discarded popcorn machine into a functional coffee roaster, using heat and airflow to roast green beans and produce brewable coffee.
The History of Coffee Roasting Machines in One Museum
Explore over 1,000 coffee roasting and grinding machines from 1870 to today, including rare prototypes and vintage shop models.
Japanese Engineer Builds Manual Coffee Roaster Without Electricity
A Japanese engineer created a non-electric coffee bean roaster that takes just 25 minutes from green beans to brewed cup, selling 8,500 units without ads.
What Is a Coffee Professional? Job Definition & Career Path
A coffee professional, or barista, prepares, serves, and promotes coffee. Learn the role’s scope, required skills, and global industry demand.
China’s Official Coffee Professional Standards Explained
Learn how China certifies baristas through a national system with three skill levels, training rules, and official exams.
Barista Exam Theory: Knowledge Breakdown by Certification Level
See exactly how much theory you need to know for junior, certified, and master barista exams — broken down by topic and score weight.
City & Guilds Certified Barista Training in China
Learn barista skills through the City & Guilds-certified program in China, run by the country’s only licensed training center.