Coffee Technology
Latest articles, industry insights and brewing guides
How Coffee Grind Size Matches Brewing Methods
Find the right coffee grind size for your brewing method—espresso, moka pot, pour-over, French press, and more—with exact grind levels explained.
How Long Do Roasted Coffee Beans Last? Proper Storage Explained
Roasted coffee beans last up to two weeks at room temp in a sealed container. For longer storage, refrigerate. Never store pre-ground coffee.
How to Maintain a Flannel Coffee Filter for Best Flavor
Flannel filters make rich, aromatic coffee—but only if cleaned and stored right. Here’s how to care for yours without ruining the flavor.
How to Use a Gooseneck Kettle for Better Coffee Pouring
Learn how to control water flow and avoid air bubbles for optimal bloom and extraction when using a gooseneck kettle.
The Honeycomb Structure Inside Roasted Coffee Beans
Japanese researcher Prof. Hirose found roasted coffee beans have a honeycomb interior—0.01mm pores hold flavor, and filter choice affects extraction balance.
How to Grind Coffee Beans for the Best Extraction
Learn the key rules for grinding coffee beans: uniformity, heat control, avoiding fines, and matching grind size to your brewing method.
What’s Really Inside Your Cup of Coffee?
A brewed cup contains 200+ compounds via pour-over, 1500+ via espresso. Discover the full chemical makeup behind your favorite brew.
How to Roast Coffee Beans at Home: 4 Simple Methods
Learn how to roast your own coffee beans at home using four easy methods, from a pan to a DIY popcorn can setup.
Understanding Coffee Roast Levels from Light to Italian
Coffee roast levels range from Light to Italian, with 8 defined grades. Each level impacts flavor, acidity, and body differently—here’s what each means.
How to Grind Coffee Beans for Different Brewing Methods
Find the right coffee grind size for your brewing device. Short extractions need finer grinds, long ones coarser—except for Turkish coffee.
How to Store Roasted Coffee Beans Without Losing Flavor
Newly roasted coffee beans need 1–3 days to degas. Store them in airtight, valve-sealed bags away from air, heat, light, and moisture to preserve freshness.
How Grind Size Varies by Coffee Brewing Method
Learn the right grind size for espresso, pour-over, French press, and more. Adjust based on your brewing device for optimal extraction.
Guatemala Single Origin: Finca Entre Rios Organic
Discover the bright, fruity profile of Guatemala’s Finca Entre Rios Organic, a high-altitude washed coffee with citrus, blueberry, and chocolate notes.
Brazilian Specialty Coffee: What Makes It Unique?
Explore how Brazil produces high-quality specialty coffee despite its reputation for mass production, with insights into a top Yellow Bourbon from Minas Gerais.
Why Your Semi-Auto Coffee Machine Makes Thin or Gritty Milk Foam
Find out why your home espresso machine produces poor-quality milk foam—and how to fix it with steam wand technique, dry tubes, and milk choice.
Ethiopian Harar: Bold Natural Process Coffee from the Birthplace of Coffee
Discover Ethiopia’s Harar coffee, a bold natural-processed single origin with chocolate and blueberry notes, grown at over 2000m in Hararge region.
What Makes Ethiopian Yirgacheffe Idido Coffee Unique?
Learn why Ethiopian Yirgacheffe Idido coffee stands out with its bright acidity, citrus notes, and unique natural processing at high altitude.
Kenya Gethumbwini AA: What Makes It Stand Out?
Explore the bright acidity, winey notes, and bold body of Kenya Gethumbwini AA, a top-tier SL28/SL34 lot from Thika, roasted city-.
Colombian COE Champion: La Esperanza Huila Washed
The 2007 COE-winning La Esperanza coffee from Colombia’s Huila region delivers bright acidity, caramel sweetness, and a balanced, silky profile.
Why Hand Grinders Produce Coarser Coffee Grounds
Hand grinders typically produce coarser coffee grounds than electric ones. Achieving visibly fine grounds takes 20–30 minutes, affecting extraction quality.