Coffee Knowledge
Latest articles, industry insights and brewing guides
17 Classic Coffee Styles Explained: From Japanese Roast to Irish Coffee
Discover 17 traditional coffee styles including Japanese roast, Hawaiian, and European classics like Cappuccino and Irish Coffee, with origins and flavor profiles.
What Is Italian-Style Espresso Coffee? Flavors Explained
Learn the core styles of Italian espresso-based drinks—Espresso, Macchiato, Cappuccino, Latte, Mocha, and Frappuccino—with key ratios and flavor profiles.
Basic Coffee Species: Arabica vs Robusta Explained
Learn the core differences between the two main coffee species—Arabica and Robusta—with origins, flavors, and cultivation facts.
How to Drink Espresso in a Coffee Shop
Learn the proper way to taste espresso in three layers—crema, body, and finish—and why sipping slowly enhances flavor.
Espresso Dosage Terms: Single, Double, and Triple Explained
Learn the meaning behind espresso shot sizes: single (7–9g), double (14–18g), and triple (21–27g), and why they matter for your shot.
How to Tell Good Coffee Beans by Sight
Learn which visual cues help identify quality coffee beans, including cracks, textures, and processing signs.
What Makes a Great Espresso Shot?
Learn what defines a great espresso: bold flavor, velvety texture, and rich crema. Discover how pressure, grind, and technique shape the perfect shot.
Acids in Specialty Coffee and How They Affect Flavor
Learn how citric, malic, quinic, acetic, and phosphoric acids shape your coffee’s taste, brightness, and body.
What’s Really Inside a Coffee Bean? Key Chemical Components
Explore the major chemical compounds in coffee beans—caffeine, tannins, fats, sugars, and more—and how they shape flavor, aroma, and body.
Types of Specialty Coffee Drinks Explained
Explore 12 common coffee drinks from black coffee to Vietnamese iced coffee, with ratios, origins, and serving styles explained.
Handbrew Coffee Temperature: What Really Matters
For ideal pour-over extraction, hit 83°C at pour, 80°C in cup, and aim for 61–62°C in mouth. Here’s why temperature control is everything.
Al’s Rule: The Espresso Sweet Spot Formula
Learn Al’s Rule: adjust espresso extraction time by 1 second per 5ml change in yield to hit the sweet spot between 0.75 and 2.5oz.
How Long Is Coffee Fresh? Specialty Coffee Freshness Guide
From green beans to brewed coffee, here’s how long your coffee stays fresh — and when it starts losing flavor.
Pour-Over vs Siphon Coffee: Flavor Profile Differences
Hand-poured coffee offers brighter, smoother layers with high sweetness, while siphon brewing delivers richer body. Here’s how each method shapes flavor.
How Does a Vietnamese Coffee Dripper Actually Work?
Vietnamese coffee drippers work like a Neapolitan flip pot, using slow gravity-fed hot water extraction to produce thick, rich coffee. But the slow drip can cool your brew.
Where Ice Drip Coffee Originated in Europe
Ice drip coffee, also known as Dutch coffee, started in Europe. Learn how its long extraction creates clean, complex cold coffee.
How to Cup Coffee Like a Pro: Methods and Best Practices
Learn the key steps, tools, and techniques behind professional coffee cupping, including SCAA and Brazilian methods, with exact grind sizes, water temps, and tasting notes.
How to Operate an Espresso Machine: Step-by-Step Guide
Learn the full espresso machine workflow—from warming cups to locking the portafilter—in 7 clear steps, including ideal shot timing and yield.
Where Does Coffee Bitterness Come From and How to Taste It
Learn why coffee tastes bitter and how to reduce bitterness by adjusting brewing time, temperature, and technique. Discover the right way to taste coffee.
How to Handle Specialty Coffee Beans from Roast to Cup
Even top-grade specialty beans like Colombia Modelo need careful sorting and handling. Learn why defect removal matters for flavor and health.