Coffee Knowledge
Latest articles, industry insights and brewing guides
Gas Roasting for Specialty Coffee Beans
Learn how gas roasting works for specialty coffee, including key temperatures, phases, and equipment used by professionals.
How to Define Coffee Roast Levels by Agtron Numbers
Discover the science behind coffee roast levels using Agtron numbers, and how they determine flavor profiles from light to dark roast.
The Science of Coffee Bean Roasting Explained
Learn how coffee roasting transforms raw beans into aromatic wonders through heat, time, and chemical reactions. Discover the key stages.
How to Store Coffee Beans and Keep Them Fresh
To keep your coffee beans fresh, avoid light, air, and fridge storage. Use airtight containers, buy only what you’ll use in two weeks, and don’t freeze.
Why You Should Rest Fresh Coffee Beans
Freshly roasted coffee needs time to develop peak flavor. Learn how long to rest beans and when they're at their best for brewing.
How Coffee Roasting Unlocks 700 Aromatic Compounds
Learn how coffee roasting transforms raw beans into aromatic drinks, creating over 700 flavor compounds through heat and time control.
How Beginners Can Choose Coffee Beans at Roaster Shops
Learn how to pick the right specialty coffee beans by chatting with shop owners, buying small batches, and understanding roast freshness.
The Complete Guide to Coffee Roasting Stages
From first crack to deep roast, learn the 4 key stages of specialty coffee roasting, including temperatures, chemical changes, and weight loss.
How Beginners Should Buy Roasted Coffee Beans
Learn how to choose a trustworthy coffee shop, ask the right questions, and buy the right amount of roasted beans as a beginner.
The Honeycomb Structure Inside Roasted Coffee Beans
Japanese researcher Prof. Hirose found roasted coffee beans form a honeycomb-like interior. Its 10-micron pores hold flavor compounds critical to extraction.
The Three Stages of Specialty Coffee Roasting Explained
Learn how coffee beans transform through drying, first crack, and cooling phases — and why roast level defines flavor.
How Coffee Roasting Works: Process, Stages & Roast Levels
Learn how coffee roasting transforms green beans through heat, unlocking aroma and flavor. Explore the 3 key stages and common roast profiles.
How Coffee Roasting Creates Flavor and Consistency
Learn how roast level, method, and duration shape coffee flavor, from light acidity to deep caramelized bitterness.
What Happens During Coffee Roasting? From Light to Dark
Roasting transforms green coffee beans into aromatic, flavorful coffee. Learn how time, heat, and chemical changes create flavor profiles from light to dark roast.
Global Coffee Roasting Preferences by Country
Explore how different countries prefer their coffee roasted—from Tokyo’s medium-dark to Vienna’s deep roast—and what flavors they aim for.
Understanding Light, Medium, and Dark Coffee Roasts
Explore how light, medium, and dark roasts differ in flavor, acidity, and body—and how roast level shapes your coffee experience.
Oven-Roasted Panama Coffee: Step-by-Step Home Roast Log
A home roaster documents an oven-baked Panama roast: 36g in, 29g out, 23:13 drop time, deep city profile, with key temps and timings.
How to Roast Coffee Beans at Home: Tips & Techniques
Learn how roast level, time, and temperature shape your coffee’s flavor. Discover key techniques for home coffee roasting with practical examples.
Coffee Roasting Basics: Dehydration, Ramp, Smoke, and Dwell
Learn key coffee roasting phases: when and how to dehydrate, set your ramp, manage smoke, and apply the dwell or glide technique.
Global Coffee Roasting Preferences by Country
Discover how countries like Japan, the U.S., Austria, and Italy prefer their coffee roasted—from medium-dark to French and Italian styles.