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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Comparison Between Light and Dark Roast Coffees
Introduction The choice between light and dark roast coffee is one of the most fundamental decisions a coffee enthusiast makes,…
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The Ultimate Guide to Espresso: History, Science, and Brewing Tips
Introduction Espresso is the cornerstone of modern coffee culture, serving as the foundation for countless beloved beverages like cappuccinos, lattes,…
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The Complete Guide to Kalita Wave Coffee Brewing: Technique, History, and Tips
Introduction The Kalita Wave has become a cornerstone in the specialty coffee community, offering a unique brewing experience that balances…
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The Complete Guide to Aeropress Coffee Brewing: Techniques, History, and Tips
Introduction The Aeropress has revolutionized home coffee brewing, offering coffee enthusiasts a versatile and portable device that delivers exceptional flavor…
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The Ultimate Guide to Coffee Grinders: Elevate Your Coffee Brewing Experience
Introduction A quality coffee grinder is the foundation of exceptional coffee brewing. While many coffee enthusiasts focus on beans, water…
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The Ultimate Guide to Aeropress Coffee Brewing: Technique, History, and Tips
Introduction The Aeropress has revolutionized home coffee brewing, offering enthusiasts a versatile and portable device that produces exceptionally clean, rich…
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The Complete Guide to Aeropress Coffee Brewing
Introduction The Aeropress has revolutionized home coffee brewing, offering enthusiasts a versatile and portable device that produces exceptionally clean, rich…
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Hario: The Pioneer of Japanese Coffee Brewing Excellence
Introduction Hario is a renowned Japanese company that has significantly influenced the world of coffee brewing since its founding in…
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The Science and Art of Coffee Bloom: A Complete Guide to Better Brewing
Introduction Coffee bloom is one of the most fascinating phenomena in specialty coffee brewing, yet it remains mysterious to many…
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