Espresso
Latest articles, industry insights and brewing guides
What Is Pre-Infusion in Espresso Machines?
Pre-infusion is a short wetting phase before full espresso extraction. It wets the puck, releases CO₂, and helps build a stable shot—here’s how it works.
Al’s Rule: The Espresso Extraction Formula Every Barista Should Know
Learn Al Critzer’s widely accepted espresso formula: 30ml in 30 seconds as a baseline, then adjust time based on yield with a simple 1-second rule per 5ml.
What You Should Know About Boiler Water in Espresso Machines
Using your espresso machine’s boiler water for tea or cleaning may seem handy—but it risks your health and shortens your machine’s life.
How Espresso Machines Changed Coffee History
Learn how the first espresso machine in 1901 revolutionized coffee, and why equipment matters for great espresso.
How Coffee Is Categorized: Black, Espresso, and Fancy Drinks
Learn how coffee is classified into black coffee, espresso-based drinks, and flavored or mixed styles — including what makes each type distinct.
Common Espresso Ratios Used in Cafés
Find out the typical espresso brew ratios used in cafés, including standard shots, ristrettos, and lungos, with practical numbers for baristas.
Espresso’s Birthplace: The Italian Coffee Ritual
Learn why espresso is best drunk fast, how it’s brewed under pressure, and where the tradition began in Trieste, Italy.
What Is Espresso Crema and How Is It Made?
Learn what espresso crema is, how it forms, and what it tells you about freshness, extraction, and your shot quality.
Why Espresso Is Considered the Essence of Coffee
Espresso delivers coffee’s boldest flavors in a concentrated shot, with its signature crema and rich mouthfeel defining the drink’s true potential.
Why Baristas Use a Coffee Tamper for Espresso
Discover why tamping coffee evenly is essential for balanced espresso extraction under high pressure—explained with key pressure numbers and extraction principles.
How to Tell If Your Espresso Is Good
Learn how to judge a great espresso by crema color, thickness, and flavor balance. Includes key metrics like 25–30 sec brew time and 7–8g dose.
12 Key Factors That Affect Your Espresso Shot
Learn the 12 essential variables—grind, dose, pressure, water temp, and more—that determine espresso quality. Master your shot with precision.
How to Steam Milk and Pour Latte Art for Espresso Drinks
Learn how to steam milk properly and pour latte art to make smooth, professional-quality cappuccinos and espresso drinks.
How Espresso Foam Creates Latte Art
Latte art forms where espresso crema meets microfoam. Discover the science behind the foam layers that let baristas pour those patterns.
How Latte Art Combines Milk and Espresso
Latte art splits into free pour and etching—learn how each works, which is harder, and why foam stability shapes your design.
Espresso Machine Pumps: Rotary Vane vs. Vibratory Pumps
Commercial espresso machines rely on rotary vane pumps, not vibratory ones—here’s why, along with how each type works.
Why Espresso Is the Pinnacle of Specialty Coffee
Espresso reveals the true essence of coffee through its intense flavor, rich crema, and complex chemical makeup.
Why Italians Drink Espresso Standing Up
Italians drink espresso quickly standing at the bar—find out why sitting down costs extra, and the coffee rules you should follow in Italy.
Espresso Roasting Essentials for Specialty Coffee
Learn how roast level affects espresso flavor, why Northern Italian-style roasts are tricky, and how to choose the right profile for your shop.
How to Dial In Coffee Grind Size, Dose & Tamping for Espresso
Learn how to adjust grind size, dose, and tamping pressure for consistent espresso extraction, with key numbers and practical tips.