Coffee Knowledge
Latest articles, industry insights and brewing guides
10 Signs You're Addicted to Caffeine
Feeling irritable, tired, or unable to focus? These could be signs of caffeine dependence. Here are 10 clear symptoms to watch for.
How Direct-Fire Roasting Shapes Pure Coffee Flavor
Direct-fire roasting unlocks deeper, wilder coffee flavors through a two-stage process combining gentle heat and flame contact.
Where Coffee Is Grown: Regions, Trees & Harvest Facts
Learn where coffee grows, why flavor varies by region, and how coffee trees produce the beans you brew—plus harvest basics.
What Is the Cup of Excellence Coffee Competition?
Learn how the Cup of Excellence (COE) finds elite coffees, rewards farmers, and connects roasters with rare single origins since 1999.
Al’s Rule: The Espresso Sweet Spot Formula
Learn how to adjust espresso extraction time based on yield using Al Critzer’s proven 5cc-per-second rule for balanced shots.
Why Is Yunnan Coffee Compared to Jamaica Blue Mountain?
Yunnan coffee is often dubbed 'the Blue Mountain of China,' but does it really rival Jamaica’s famed bean? Here’s what makes Yunnan unique.
Coffee Industry Terms Explained: From Bean to Brew
Learn essential coffee terms—from cherry types to roast methods and espresso lingo—explained clearly for specialty coffee lovers.
How 17th-Century Coffeehouses Shaped Public Opinion and Law
Explore how 17th-century British coffeehouses became hubs for public debate, influencing the rise of legal and political thought driven by collective opinion.
Can Drinking Coffee Help Prevent Retinal Degeneration?
Research shows chlorogenic acid in unroasted coffee may protect lab mice from retinal damage. Here’s what that means for human eye health.
A Quick Guide to Coffee History and Drink Types
Learn the 1,500-year history of coffee and how 12 classic espresso-based drinks are made, with exact ratios and origins.
How Water Quality Affects Your Coffee Flavor
Learn how different types of water—from tap to purified—affect coffee’s taste, brightness, and body based on hands-on brewing tests.
How to Master Latte Art: Tips for Better Coffee Pouring
Learn how to pour consistent latte art like a rosetta, why crema matters, and what makes a great espresso base for beautiful milk designs.
Does Coffee Really Drain Your Calcium? Debunking the Myth
Adding milk to coffee can offset calcium loss, and moderate coffee intake offers brain-boosting benefits without harming health.
Can You Drink Coffee During Your Period?
Yes, but in moderation—experts recommend no more than 1 cup per day during menstruation to avoid worsening cramps, bloating, and hormone fluctuations.
Why Italians Drink Espresso Standing Up and Other Coffee Rules
Discover why Italians prefer standing for espresso, why sitting costs extra, and the right time to order a cappuccino in Italy.
How Coffee Affects Your Heart, Kidneys, and More
Coffee impacts your heart, digestion, and even vision. Here’s what science says about 6 key body systems affected by caffeine.
How Long Should Freshly Roasted Coffee Beans Rest Before Brewing?
Freshly roasted coffee beans need time to degas. Here’s how long to wait before brewing for the best flavor, and how to store them properly.
What Type of Coffee Bean Do You Prefer?
Coffee beans are grouped into five flavor profiles: acidic, bitter, sweet, neutral, and mellow. Discover which camp you fall into.
How Coffee Beans Are Processed After Harvest
Learn how washed, natural, and honey processed methods shape coffee flavor. Discover key steps from cherry to green bean.
Espresso vs Black Coffee: What True Coffee Lovers Drink
True coffee enthusiasts prefer espresso or black coffee for its pure flavor. Here’s why bitterness reveals the true character of coffee.