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The Most Stable Kalita Wave Brewing Guide — Using the Vihi V-Fold for Perfect Paper Geometry
  The Most Stable Kalita Wave Recipe — Using the Vihi V-Fold for Perfect Paper Geometry By Vihi Design • Quiet engineering for calm, consistent brews. Kalita Wave brews are loved for their clarity, calm sweetness, and structured flow. But they also have a hidden vulnerability: the geometry of the paper filter controls almost everything. When the filter folds too tightly or too loosely, water takes different paths: One side drains faster One side holds water longer Extraction shifts off-centre Sweetness and clarity quietly disappear After measuring dozens of Kalita... Read more...
The Philosophy Behind Vihi Design — Quiet Design, Measured Craft
The Philosophy Behind Vihi Design — Quiet Design, Measured Craft Vihi Design is not just a studio — it’s a way of looking at coffee, craft, and calmness. In a world where speed defines value, we wanted to slow things down. Every design we make — from the V-Fold Tool to the upcoming G-Flow Hopper — begins with one simple question: how can an object make everyday brewing feel quieter, steadier, and more human? Design for Calm, Not for Noise We don’t design to impress. We design to disappear —... Read more...
About Vihi Design — From Curiosity to Creation
About Vihi Design — From Curiosity to Creation Vihi Design began with a simple feeling: that the quiet moments around coffee deserved tools that were just as thoughtful as the drinks themselves. Not loud, not complicated – just precise, well-made objects that make the ritual feel a little calmer, a little more deliberate. It Started with a Question Like many things in coffee, Vihi Design started with curiosity. Why do small details – the angle of a filter, the way beans enter a grinder – change the taste so much?... Read more...
The Story Behind the V-Fold Tool
The Story Behind the V-Fold Tool Every craft begins with a question. Ours was simple: Why are the first and last Kalita filters never quite the same? At Vihi Design, we spend hours observing how coffee flows through paper, how each fold affects extraction, and how small imperfections change taste. What started as curiosity slowly became a quiet pursuit of precision. Designing for Symmetry Traditional Kalita-style filters often show a 5°–8° deviation in their fold geometry. That small variance affects how water distributes during brewing — resulting in subtle imbalances... Read more...