Coffee Guy

Batch of actionable brew-science ripe for cheat-sheets

Batch of actionable brew-science ripe for cheat-sheets

Key Questions

How do I fix sour Yirgacheffe beans in a V60 pour-over?

Use 15g coffee at 90°C with a 1:15 ratio to reduce acidity while preserving flavor. This adjustment balances the brew effectively for light roasts.

What is a coffee siphon and how is it brewed?

A coffee siphon is a vacuum brewer that extracts coffee using heat and pressure. Follow a 1:15-1:17 ratio with a specific grind chart for optimal results.

What flavors are in Altos Coffee from Brazil Cerrado?

Altos Coffee features milk chocolate notes with a versatile roast profile. It suits various brewing methods for a balanced cup.

How should coffee beans be stored for freshness?

Keep beans in an airtight container away from light, heat, and moisture. This preserves aroma and taste for several weeks.

What features matter in an electric coffee grinder?

Look for consistent burr grinding, adjustable RPM, and pour-over suitability like in Eureka models. These ensure even extraction across methods.

What techniques improve pour-over coffee results?

Focus on grind consistency, water temperature, and controlled pouring with tools like V60 or Origami. Hybrids with Hario Switch also enhance clarity.

How does the June brewer improve pour-over?

The June is a vacuum-insulated brewer from Kickstarter that stabilizes temperature during brewing. It supports precise manual methods effectively.

What makes dark roast coffee different to brew?

Dark roasts need lower temperatures and adjusted ratios to avoid bitterness while highlighting body. Guides emphasize extraction efficiency for best taste.

Production-ready: Phin home recipes, Comandante C40 cold brew, light-roast fixes, V60/DEEP 27/Origami, siphon, Hario Switch hybrid, Eureka ZEUS RPM, French Press, roasting extraction efficiency, coffee storage guide, low-acid coffee explainer, cowboy coffee guide, Japanese Coffee Jelly recipe, coffee bloom explainer, Panama coffee varieties guide, Cold Brew & Iced Coffee Field Guide, How to Grind Coffee guide, batch brew vs pour over debate, beginner's grind guide, coffee scale guide, dark roast guide, comprehensive pour-over guide, Costa Rica's Golden Bean V60 method, Eureka Peppe grinder review, Colombian Coffee guide, Panama Coffee guide, Crema di Caffè recipe, electric grinder buyer's guide, coffee storage guide. Cometeer summer recipe post (Diet Coke espresso, affogato, coffee tonic) added previously. Today added: Yirgacheffe sourness fix (15g, 90°C, 1:15, V60), June vacuum-insulated pour-over brewer from Kickstarter, siphon brewing guide (grind chart, ratio 1:15-1:17), and Altos Coffee guide (Brazil Cerrado, milk chocolate notes). Also read percolator history piece — low urgency but adds context for brew-science. Today added: Coffee Extraction Explained primer (under/over/balanced) and Third Wave Coffee primer.

Sources (15)
Updated Jul 20, 2026