Coffee Knowledge
Latest articles, industry insights and brewing guides
What Type of Coffee Suits Your Personality?
Discover which coffee bean matches your personality — from bold Indonesians to smooth Brazilians, find your ideal brew based on taste preference.
What Is Variable Pressure in Espresso Machines?
Learn what true variable pressure means in espresso machines, how it works, and which machines actually deliver it.
6 Common Myths About Drinking Coffee
Learn the truth behind common coffee myths, including addiction, sleep, health risks, and dehydration. Get clear, science-backed answers.
How to Make Iced Drip Coffee at Home
Learn how to brew ice drip coffee with step-by-step instructions, ideal extraction rates, and flavor tips for making smooth cold coffee at home.
What Is Coffee Leaf Rust and Why It Matters
Learn how coffee leaf rust devastated Central American crops, reducing yields by up to 40% and causing global price shifts.
The World’s 10 Most Expensive Coffee Beans
Discover the top 10 priciest specialty coffees in the world, from kopi luwak to Jamaican Blue Mountain, with prices and production details.
13 Unexpected Uses for Coffee You Probably Didn’t Know
From relieving headaches to polishing furniture, here are 13 practical and surprising ways to use coffee beyond drinking.
Why You Shouldn't Drink Boiler Water from Your Espresso Machine
Boiler water from your espresso machine isn't safe to drink or use for brewing tea. Repeated heating produces harmful nitrates and damages your machine.
Al’s Rule: The Espresso Extraction Formula Every Barista Should Know
Learn Al Critzer’s widely accepted espresso formula: 30cc in 30 seconds as a baseline, with grind adjustments to balance flavor.
How Shanghai Helped Shape China’s Coffee Culture
From 'kāfēi' to 'cough syrup', Shanghai’s early coffee scene evolved through colonial influence, literary adoption, and public spaces. Here’s how.
Light vs Dark Roast Coffee: What Every Coffee Lover Should Know
Understand the key differences between light and dark roast coffee, plus how espresso, milk ratios, and brewing methods shape your cup.
4 Alternative Milks and Mix-Ins for Specialty Coffee
Try these four non-dairy and flavor-boosting coffee variations: try soy, almond, banana, or mint for a twist on your usual brew.
SCAA Cupping Standards: Process and Purpose Explained
Learn the exact SCAA cupping protocol: roast level, grind size, water temp, brew time, and why these steps matter for coffee evaluation.
What Is Pre-Infusion in Espresso Machines?
Pre-infusion is the short initial wetting phase in espresso brewing that prepares the coffee puck before full pressure extraction begins.
Why 'Coffee Coffee' Still Matters in Specialty Coffee Today
Explore how global coffee culture evolved since the 1990s, from tech-driven gear trends to health-focused brewing and the rise of indie cafés.
How to Use Coffee Grounds: Fungus Cultivation & Green Plant Projects
Discover how coffee grounds can grow mushrooms and support community projects, with data on income impact and waste reduction.
How Caffeine Can Boost Your Long-Term Memory
Research shows 200mg of caffeine taken after studying can improve your ability to recall similar images up to 24 hours later.
What Do Coffee Trees and Cherries Look Like?
Learn what coffee cherries and trees look like, from flower to fruit, and how long it takes for coffee plants to bear fruit.
What Is Coffee Roasting and Why It Matters
Coffee roasting transforms green beans into flavorful brews. It defines 80% of your cup’s taste—get the roast wrong, and flavor suffers.
Key Coffee Tasting Terms Every Coffee Drinker Should Know
Learn what dry aroma, wet aroma, acidity, body, aftertaste, and flavor mean in specialty coffee — with clear definitions used by professionals.