Notes from the bench
Experiments, materials and measurements from the VIHI lab — 186 published notes and counting.

The Complete Guide to Origami Dripper Brewing: From Geometry to Perfect Extraction
Introduction The pursuit of optimal coffee extraction has driven the evolution of brewing methodologies from simple immersion to c…

The Origami Dripper Agitation Guide: Stirring, Swirling, and Pulse Pouring Techniques
Introduction The quest for repeatable, high-extraction, and uniform coffee brewing has driven significant innovation in pour-over…

Mastering Flat-Bottom Brewing with Origami: Kalita Wave Filters for Enhanced Sweetness
Introduction The pursuit of optimal sweetness extraction in specialty coffee brewing represents a fundamental objective within the…

How to Pre-Shape Kalita Wave 155 Filter Paper
Pre-shaping a Kalita Wave 155 filter paper is a small step done before rinsing. The goal is simple: help the wave ribs open evenly…

Kalita Wave 155 vs 185 Filter Geometry
The Kalita Wave 155 and Kalita Wave 185 share the same flat-bottom brewing idea, but their filter geometry behaves differently in…

Origami Dripper vs. V60: When to Choose Cone Filters for Maximum Clarity
<!DOCTYPE html> Origami Dripper vs. V60: Cone Filters for Maximum Clarity 1. Introduction The pursuit of clarity in brewed coffee…

The Origami Dripper Single Pour Technique: Maximizing Sweetness and Clarity
Introduction The pursuit of optimal extraction in pour-over coffee brewing represents a complex interplay of fluid dynamics, parti…