Coffee Research Lab

Independent Studies on Extraction Science & Brewing Consistency

The Vihi Coffee Research Lab operates independently to explore the physics, chemistry, and geometry behind manual brewing. Led by a Royal College of Art PhD graduate, our team combines industrial design expertise with rigorous scientific methodology to solve real brewing consistency problems.

Unlike marketing-driven "research," our studies are data-first. We publish our methodologies, share raw data when possible, and welcome peer review from the coffee community.

Research Focus Areas

Filter Geometry

How paper structure affects flow dynamics and extraction uniformity

Extraction Science

TDS, EY%, and flavor compound analysis across brewing variables

Brewer Comparison

Side-by-side testing of flat-bottom vs cone drippers

Consistency Metrics

Identifying and controlling variables for repeatable results

Latest Research Articles

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Research Methodology

Every experiment in our lab follows rigorous protocols to ensure reproducibility and accuracy:

Controlled Variables: Temperature, grind size, and water chemistry are standardized using laboratory-grade equipment
Measurement Tools: VST Coffee Refractometer for TDS, precision scales (0.01g), and FLIR thermal imaging
Statistical Rigor: Minimum n=12 samples per condition, with outlier detection and confidence intervals
Blind Protocols: Taste evaluations use double-blind methodology to eliminate bias
Open Data: Raw data and methodologies available for peer review upon request