Coffee Knowledge
Latest articles, industry insights and brewing guides
Espresso Blending: The Technical Core of Great Shots
Learn why espresso blend design matters more than single-origin beans, how roast levels affect crema, and what pros test to perfect shots.
7 Manual Coffee Brewing Methods Compared
From pour-over to siphon, explore 7 manual brewing methods with exact ratios, temperatures, and steps for each technique.
When Does Coffee Dehydration Start? What’s the Ideal Roast Ramp?
Learn when coffee dehydration begins, how fast to ramp heat, and when to let the roast coast. Key temps, phases, and mistakes to avoid.
How Coffee Roasting Unlocks the Richest Aromas
Coffee’s intense aroma comes alive through proper roasting. Discover how heat transforms bland beans into over 800 aromatic compounds.
How Heat Transfer Affects Coffee Roasting: Conduction, Convection, and Radiation
Understand how conduction, convection, and radiation impact coffee roasting—learn common issues and how to adjust your roast profile effectively.
How Coffee Roast Levels Are Defined and What They Taste Like
Learn how US coffee roasters use Agtron numbers to define roast levels, from light cinnamon to dark French, and how roast impacts flavor and caffeine.
Coffee Roast Levels: A Complete Guide to Roast Classifications
Learn the key coffee roast levels—from light to dark—with official classifications, color codes, and how each affects flavor. Includes SCAA Agtron numbers.
How to Roast Coffee at Home Using a Hand Pan
Learn the basics of home coffee roasting with a hand pan, including key goals, common pitfalls, and how to achieve even roast development.
Coffee-to-Water Ratio: The Brewing Standard
Learn the standard and enthusiast coffee-to-water ratios for brewing, with exact measurements per cup, in ounces, grams, and milliliters.
Why You Shouldn't Drink Boiler Water from Your Espresso Machine
Repeatedly boiled water from your espresso machine's boiler can be unsafe to drink and harm your machine. Avoid health risks and extend equipment life.
6 Common Coffee Brewing Methods Explained
Learn how to make coffee using six popular brewing methods including espresso, pour-over, French press, and more, with key details for each.
How to Make a DIY Mocha Coffee at Home
A simple 5-ingredient mocha recipe using chocolate sauce, espresso, cream, and cocoa—perfect for satisfying sweet cravings without derailing your diet.
How to Brew Coffee with a Soda Bottle and Cake Filter
A soda bottle and cake-style coffee filter can make a decent pour-over. This budget-friendly hack works well for travel or casual brewing.
How to Make Dutch Cold Drip Coffee Step by Step
Learn how to brew traditional Dutch cold drip coffee, including the essential 24-hour fridge aging step for full flavor development.
How to Brew Coffee Without a Machine: Two Manual Methods
Learn how to make coffee manually without a machine using filter paper or a press pot, with water temps, grind sizes, and step-by-step guides.
How to Brew Coffee: 3 Common Manual Methods Explained
Learn how to make coffee using paper filter, cloth filter, and Moka pot methods with exact grind, ratios, temperatures and steps.
12 Factors That Affect Espresso Flavor
Learn how 12 key variables—from roast level to brew pressure—affect the taste of your espresso shot.
How Espresso Pre-Infusion Works and Why It Matters
Learn how espresso pre-infusion works across lever, E61, electric, and manual machines — and why it affects your shot quality.
What Affects the Quality of Your Espresso Shot
Learn how factors like pre-infusion, water quality, weather, mood, and grind freshness impact your espresso extraction and flavor.
What Is Arabica Coffee? The Origins of Specialty Coffee
Arabica coffee, the highest-quality of the three coffee species, originates from Ethiopia and thrives at high altitudes. Learn why it dominates specialty coffee.