Coffee Knowledge
Latest articles, industry insights and brewing guides
What Makes Coffee Acidic? The Science Behind Coffee Acidity
Learn which compounds create coffee’s acidity, how roast level and brewing affect pH, and why high-altitude beans taste more sour.
How Coffee Is Harvested and Processed: Washed vs Natural Methods
Learn how coffee cherries are picked, when they’re harvested, and the two main processing methods—washed and natural—that shape your coffee’s flavor.
How to Describe Specialty Coffee Flavor and Aroma
Learn the key sensory elements—olfaction, taste, and mouthfeel—that define specialty coffee’s profile, including standard descriptors and cup qualities.
How Grind Size Matches Your Coffee Brewing Method
Find the right coffee grind size for espresso, pour-over, French press and more. Learn how brew time affects grind coarseness and extraction.
How to Grind Coffee Beans & Choose the Right Grinder
Learn the best grind sizes for different brewing methods, why freshness matters, and how to pick an electric grinder that works for your setup.
How to Store and Grind Coffee Beans for Freshness
Store roasted coffee beans in an airtight container away from light, moisture, and heat. Grind just before brewing for the best flavor.
What’s in Coffee Beans? Key Chemicals & Single-Origin Varieties
Learn what compounds make up coffee beans—caffeine, tannins, fats, sugars—and explore key single-origin varieties that shape flavor.
From Seed to Cup: The Journey of Coffee Fruit and Bean Layers
Learn how coffee cherries ripen, change color, and are processed into green beans, with details on anatomy and variety differences.
How to Choose and Clean Coffee Cups for Better Flavor
Discover the best cup materials for different coffee types, ideal sizes for espresso or milk drinks, and how to clean your cups properly.
How the E61 Commercial Espresso Machine Group Head Works
Learn how the legendary E61 group head heats coffee evenly and pre-infuses shots using thermosyphon flow and a pressure delay chamber.
How Water Temperature Affects Coffee Extraction and Flavor
Water temperature, grind size, and brew time together determine coffee extraction. Here’s how to get the best out of your single origin beans.
The Role of Robusta in Italian Espresso Blends
Learn why many roasters still include Robusta in espresso blends, how it affects crema and flavor, and where it fits today.
How to Use an AeroPress to Brew Coffee with Crema
Learn how to brew rich, aromatic coffee with AeroPress using fresh grounds, precise water temps, and a 1:1 dilution for balanced flavor.
Electric Grinder Tips: How to Use and Maintain Your Coffee Grinder
Learn how to properly use and maintain an electric grinder with key steps like pre-grinding, correct startup order, checking grind consistency, and preventing clogs.
What Is Coffee Blending and How Are Espresso Blends Made
Learn what coffee blending means, why roasters blend beans, and how it creates unique flavor profiles—especially for espresso. No fluff, just facts.
What Beans and Techniques Make a Great Espresso Shot
Learn how to choose beans, roast levels, grind size, and brewing details for the perfect espresso with 25-second extraction and rich crema.
How to Master Heart-Shaped Latte Art in Espresso
Learn the four key steps to perfecting heart latte art, from steaming milk to pouring technique, with expert tips from a Chinese latte art champion.
Best Coffee Grinders: Flat vs Conical Burr Basics
Flat and conical burr grinders offer the best consistency for specialty coffee. Learn why they beat blade grinders and how to choose the right one.
Cocoa vs Coffee: Bean, Powder, and Health Effects
Cocoa and coffee come from different beans, taste distinct, and offer separate health benefits. Here’s how to tell them apart.
How Water Temperature Affects Coffee Flavor and Extraction
Learn how water temperature, grind size, and brew time interact to shape your coffee’s flavor — and why temperature alone isn’t the culprit.