Coffee Knowledge
Latest articles, industry insights and brewing guides
Origin-Specific Coffee Flavors and Ideal Roast Levels
Explore recommended roast depths and flavor profiles for 40+ coffee origins, from Ethiopia to Vietnam, with expert guidance for every region.
Why Is Coffee Bitter? The Roast Process Explains It
Coffee bitterness comes from two compounds formed during roasting—chlorogenic acid lactone and phenylindanes. Longer roasts intensify their levels.
How to Hand-Check Freshness and Roast Quality of Coffee Beans
Learn how to assess coffee bean freshness and roast quality using simple tactile and sensory checks like pinching, cutting, and chewing.
How to Choose Quality Coffee Beans by Asking the Right Questions
Learn how to select the best coffee beans by asking about origin, variety, roast level, and more. Expert tips for smarter coffee buying.
How to Smell Freshness in Specialty Coffee Bags
Learn how to assess coffee freshness just by smell—even without opening the bag—using valve bags and your nose.
What Makes a True Cappuccino? The Real Standards
A true cappuccino features a thick, domed milk foam, at least one third of the cup, and a golden crema ring. Here’s how it really should look and taste.
How Long Should You Rest Coffee Beans After Roasting?
Freshly roasted coffee needs time to degas. Most beans taste best after 1–5 days of rest, peak at 2–3 weeks, then decline.
10 Surprising Facts About Coffee You Didn’t Know
From dancing goats to illegal bans, discover 10 little-known truths about coffee’s origins, health effects, and global impact.
The Basics of Coffee Roasting: What Every Roaster Should Know
Learn how coffee roasting transforms green beans into flavorful coffee, from the science behind it to the key stages and roast levels.
Flavorings for Espresso and Italian-Style Coffee
Discover common flavorings used in espresso-based drinks—from fruit syrups to spices—and how they enhance your coffee experience.
Common Sugars Used in Coffee and Their Effects
Learn how different sugars—from white to brown—affect coffee flavor. We break down sweetness levels, recommended usage, and best practices for 7 coffee sugars.
Why Does Coffee Taste More Acidic When It Cools?
Coffee turns more sour as it cools due to released tannic acids and heightened taste sensitivity to acidity at lower temperatures.
How Coffee Supports Health: Proven Benefits & Limits
Scientifically backed perks of moderate coffee intake include weight control, focus boost, and lower cancer risk. Here’s what 100mg caffeine really does.
Best Water for Brewing Coffee: What Actually Works
Not all water is equal for coffee. Learn which types—distilled, softened, purified—work best for different brew methods like espresso and pour-over.
How to Hold a Coffee Cup the Right Way
Learn why traditional Italian coffee cups have small or no handles—and how to hold them properly without burning your fingers.
Why Coffee Beans Ooze Oil — And What It Means for Freshness
Learn why coffee beans appear oily and whether it signals freshness. Discover the truth behind shiny beans and how to judge roast age.
What Is Japanese Charcoal-Roasted Coffee?
Charcoal-roasted coffee delivers softer, milder flavors with a distinct smoky depth. Here’s how Japanese roasters use wood charcoal for unique results.
How to Rest and Bloom Coffee Beans for Better Flavor
Freshly roasted coffee isn’t always best. Learn how long to let coffee beans degas and rest for optimal flavor, especially for espresso.
What Makes Coffee Bitter? The Science Behind Coffee's Bitterness
Coffee bitterness comes mainly from chlorogenic acid lactones and phenylindanes formed during roasting. Light to medium roasts have less.
What Makes Cuban Coffee Unique? The Truth About Turquino Beans
Discover why Cuba’s best coffee, Turquino or Extra Turquino, is prized for low acidity, medium body, and smooth flavor—plus why politics limit its export.