Espresso
Latest articles, industry insights and brewing guides
Everything You Need to Know About Espresso Tamper Sizes and Shapes
Learn why tamper size, shape, and material matter for espresso extraction, and how to choose the right one for your portafilter and machine.
How to Read Espresso Quality Through Crema
Learn why crema matters in espresso, how to judge its quality, and whether removing it improves flavor — based on expert insights.
How Coffee Drinking Evolved from Food to Espresso
From Ethiopian coffee berries eaten as food to Turkish ibrik brews and modern espresso, learn how coffee drinking evolved across cultures.
How to Make a Great Espresso: Key Factors Explained
Learn the 13 essential factors that affect espresso quality—from fresh beans and grind size to water pressure and extraction time.
How to Taste and Evaluate a Perfect Espresso Shot
Learn how to assess espresso quality by crema, aroma, volume, and taste — plus how much caffeine it really contains.
Espresso-Based Coffee Drinks: Types & How They're Made
Learn the 10 most common espresso-based drinks, their ratios, and how each is prepared—from lattes to macchiatos—with a visual guide.
The Western Consensus on Ideal Espresso Extraction
Learn why 30cc in 30 seconds is the baseline for espresso, how extraction time and volume affect flavor balance, and what defines a true ristretto.
What Matters Most When Brewing Espresso
Clean equipment is just as crucial as dose or yield when pulling a great espresso shot — here’s what really counts.
How the E61 Espresso Brewing Head Works
The E61 group head uses thermosyphon heating and a slow pre-infusion system—key reasons it’s still used in pro machines after 60 years.
What Is Pre-Infusion in Espresso Machines?
Pre-infusion wets coffee grounds before full pressure extraction. Learn how it works, why it matters, and how different machines achieve it.
Al’s Rule: The Espresso Extraction Formula Every Barista Should Know
Learn Al Critzer’s widely accepted espresso rule: 30cc in 30 seconds as a baseline, with a clear formula to adjust time and yield.
Why You Shouldn't Drink Boiler Water from Your Espresso Machine
Boiler water from espresso machines isn’t safe to drink. Repeated heating forms harmful nitrates and damages your machine—here’s why.
The History and Science Behind the Espresso Machine
Learn how the first espresso machine changed coffee forever, who invented it, and why the right machine matters for great espresso.
What Is Pressure Profiling in Espresso Machines?
Learn how true pressure profiling works in espresso machines, which brands offer it, and why unstable pressure changes don’t improve extraction.
How Coffee Is Categorized: Black, Espresso, and Fancy Drinks
Learn how coffee is classified into black, espresso-based, and flavored drinks. Understand what makes a cappuccino both fancy and espresso-based.
The Birthplace of Espresso: A Journey to Trieste
Discover how espresso was born in Italy, how the Illeta machine changed coffee forever, and what makes a true shot of espresso.
What Is a Con Panna Coffee? Classic Espresso Topping Explained
Learn what makes a Con Panna—or Viennese-style—espresso, with its thick whipped cream topping. Discover its retro origins and serving style.
What Espresso Crema Color Reveals About Extraction
Learn what the color of your espresso crema means — from pale tan to nearly black — and how it reflects freshness, roast level, and brewing pressure.
What Is Crema in Espresso and How Is It Formed?
Crema is a stable foam formed during espresso extraction due to CO₂, water pressure, and natural coffee compounds like melanoidins.
Why Espresso Is the Truest Expression of Coffee
Espresso reveals coffee’s full complexity through pressure-brewed intensity, rich crema, and concentrated flavor. Here’s how it works.