Coffee Technology
Latest articles, industry insights and brewing guides
What Is Mocha Coffee? Origin, Flavors & Misconceptions
Mocha coffee originally refers to Yemen-grown beans, not just chocolate-flavored drinks. Learn its true history, flavor profile, and common mix-ups.
How Coffee Beans Are Processed After Harvest: 3 Main Methods
Learn the three main ways coffee beans are processed after harvest—natural, washed, and honey—and how each affects flavor and quality.
How Coffee Roasting Transforms Flavor and Color
Learn how coffee roasting stages—dehydration, first crack, and cooling—affect color, aroma, and taste, plus common roaster types.
Coffee Latte Art: Origins and Techniques Explained
Learn the history, evolution, and essential techniques behind latte art, from classic patterns to texture-focused milk pouring.
How to Steam Milk and Pour Latte Art Step by Step
Learn how to steam milk properly and pour latte art with clear steps, including ideal crema, milk texture, and pouring technique.
How Stumptown Coffee Became a Third Wave Leader
Founded in 1999, Stumptown Coffee pioneered third-wave values with direct trade, premium roasting, and retail innovation in Portland and beyond.
How Coffee Roaster Afterburners Reduce VOC Emissions
Learn how a roaster’s afterburner works, why it burns off VOCs at 500°C, and how much extra gas it uses during coffee roasting.
Can You Re-Extract Coffee? What Changes in the Second Brew
Yes, you can re-extract coffee—but taste and strength drop significantly. Using tools like the AeroPress, a second 'under-extracted' brew may taste smoother, but isn’t optimal.
Patented Roasting Tech Boosts Polyphenols in Coffee Beans
A new patented process extracts and reintroduces polyphenols into roasted coffee beans, significantly increasing their antioxidant content.
How Shade vs Sun Coffee Farming Affects Rust Risk
Shade-grown coffee once protected farms from rust. Learn how sun exposure and biodiversity loss triggered Central America’s worst outbreak.
How Coffee Acidity Works: Roast, Process & Brewing Tips
Learn how roast level, processing, and brewing affect coffee acidity, with clear comparisons and 12 key rules from a Chinese specialty roaster.
How Roast Level Affects Coffee Extraction Variables
Learn how grind size, temperature, time, and pressure influence coffee extraction post-roast, and how to balance them for better flavor.
What Is 90+ Coffee? Origin, Grading & Flavor System Explained
Learn how 90+ Coffee got its name, how its beans are graded beyond 90 points, and why its naming and processing methods break the specialty coffee rules.
How Coffee Bean Roast Levels Affect Flavor and Freshness
Learn how roast levels affect acidity, bitterness, and crema, and how to store beans to preserve aroma and prevent oxidation.
Why Your Roasted Coffee Isn’t Fully Extracted
Learn why your coffee may taste off—often due to under- or over-extraction—and how to hit the ideal 18–21% extraction range for balanced brews.
How Much Water and Grind Size for AeroPress Coffee?
Find the ideal water-to-coffee ratio and grind size for brewing with an AeroPress. This guide explains ratios, temperatures, and adjustments for flavor control.
Aeropress Brewing: 10 Common Questions Answered
Find the best grind, water temp, filter, and brew method tips for making great coffee with the Aeropress in 10 practical answers.
How to Hold and Drink Coffee Properly: Coffee Etiquette Explained
Learn the right way to hold a coffee cup, add milk and sugar, stir, and eat with coffee—essential etiquette for enjoying coffee in Western settings.
How to Clean and Maintain Your Coffee Machine Daily
Keep your coffee machine in top shape with regular cleaning and care: clean the water tank twice monthly, wipe the drip tray daily, and descale as needed.
How to Brew Coffee with a French Press: Step-by-Step Guide
Learn the exact steps, grind size, water temp, and timing to brew great coffee with a French press. Includes tips to avoid sediment.