Coffee Technology
Latest articles, industry insights and brewing guides
How Coffee Roasting Works: First Crack, Second Crack & Color Stages
Learn how coffee roasting creates color, flavor, and aroma through controlled heat. Understand first and second crack stages and how roast levels affect taste.
ET-2 Roaster Tutorial: Full City Colombian Roast Guide
Learn how to roast 300g of Colombian beans to Full City on the ET-2 with step-by-step instructions, roast curve milestones, and key data points.
Mandheling vs Sumatra Coffee: What’s the Difference?
Mandheling is a market name for high-quality Sumatran Arabica, mainly from Lake Toba and Lake Tawar. Here’s how geography shapes its bold profile.
What Makes Mandheling Coffee Different From Other Indonesians?
Mandheling isn’t a region or coffee variety — it’s a historic misnomer for high-quality Arabica from Indonesia’s Lake Toba region.
How to Choose Coffee Beans: A Beginner’s 3-Minute Guide
Learn how to pick the right coffee beans, understand roast levels, and spot quality factors in under 3 minutes. Covers beans, flavors, and freshness.
How to Clean a Water Softener for Better Coffee
Learn how to maintain your LJ series water softener to ensure consistently soft water for brewing high-quality coffee.
How to Turn Coffee Grounds Into Reusable Espresso Cups
German designer Julian Lechner turns used coffee grounds into durable, dishwasher-safe espresso cups called Kaffeeform. Each cup is unique and smells faintly of coffee.
How Your Coffee Cup Affects Flavor and Appearance
The right coffee cup enhances both flavor and looks. Learn how material, shape, and size impact your coffee experience.
How CoE Coffee Cupping Scores Define Specialty Bean Quality
Learn how the CoE scoring system evaluates coffee beans with 8 key categories, from aroma to overall balance, and what scores mean for quality.
Coffee Bean Basics: 5 Secrets Every Coffee Lover Should Know
From cleaning green beans to sealing freshly roasted coffee, here’s what really happens — and why your brew tastes the way it does.
How to Judge Coffee’s Bitterness and Taste Balance
Learn how to assess coffee bitterness levels and taste balance through aroma, color, flavor, and temperature — with expert guidance.
Where Does Coffee’s True Aroma Come From?
Coffee’s rich fragrance starts with its flowers, ripens in the fruit, and is shaped by roast and processing. Here’s how the scent develops.
Siphon Coffee: Ideal Temperature & Key Brewing Tips
Learn the optimal 90–95°C water temperature for siphon brewing, along with essential steps and precautions for making great coffee with a siphon.
Coffee Tree Varieties Explained: Arabica, Robusta, and Liberica
Learn the key differences among the three main coffee species—Arabica, Robusta, and Liberica—including ideal growing conditions and flavor profiles.
Kenya’s Coffee War: Who Controls the Black Gold?
Six Western firms dominate Kenya’s $60M+ coffee trade, but new deals with China could shift power—and profits—back to farmers.
What Is Coffee Honey Processing and How Does It Differ?
Learn how honey processed coffee differs from washed and natural methods, why it’s sweet and complex, and how it became a favorite in espresso and competitions.
Five Signs You've Had Too Much Caffeine
Learn the five clear signs of caffeine overload — from anxiety to sleep trouble — and how much is too much, according to research.
Espresso Golden Rules: How to Pull a Perfect Shot Every Time
Learn the essential variables behind a balanced espresso: pressure, temperature, dose, grind, and extraction time that define a great shot.
How to Choose and Use Bonavita Coffee Equipment
Discover the best Bonavita gear for pour-over and brewing, with expert picks and setup tips for optimal coffee extraction.
How to Choose and Use an Anfim Coffee Grinder
Learn why Anfim grinders are favored by World Barista Champions, their technical advantages, and how to get the best results.