Vol. 1 · Evidence-led coffee education · Est. 2026
Understand coffee, one study at a time.
Coffee Studies is an evidence-led education project covering caffeine, brewing science, beans and origins, instant and decaf coffee, coffee alternatives, and functional coffee. Plain-English answers — every factual claim backed by a citation you can check.
Topics
Explore coffee by subject
Caffeine & Health
What research says about coffee and your body
02Brewing Science
Extraction, ratios, temperature, and grind
03Brew Methods
Every way to make coffee, explained
04Espresso & Coffee Drinks
The coffee drink encyclopedia
05Beans, Roasts & Origins
From plant to roasted bean
06Instant & Decaf Coffee
How soluble and decaffeinated coffee are really made
07Coffee Alternatives
Chicory, matcha, mate, and beyond
08Functional & Mushroom Coffee
The evidence behind functional coffee
09Coffee Business
What it actually costs and takes to open a coffee business
10Barista Skills
Technique, training, and careers behind the bar
11Coffee Equipment
Espresso machine care and coffee storage
Start here
Most-asked coffee questions
Caffeine & Health
Is Coffee Healthy? What Large Studies Actually Show
Caffeine & Health
How Much Caffeine Is in Coffee?
Caffeine & Health
Coffee and Sleep: What Research Shows
Brewing Science
Coffee-to-Water Ratio Explained
Brewing Science
Coffee Grind Size Guide: Which Grind for Which Method
Brew Methods
Pour-Over Coffee Guide: Ratios, Bloom, and Technique
Brew Methods
Cold Brew Coffee Guide: Ratios, Steep Time, Technique
Beans, Roasts & Origins
Arabica vs Robusta: Taste, Caffeine, and Differences
Espresso & Coffee Drinks
What Is Espresso? Pressure, Extraction, the Shot
Latest articles
6 of 195
Recent research and explainers
- Beans, Roasts & Origins
Thai Coffee: Doi Chang Arabica and Oliang Explained
Thai coffee's two worlds — the highland arabica specialty regions of Doi Chang and Doi Tung, and the traditional Thai iced coffee culture built on
- Beans, Roasts & Origins
Rwandan Coffee: Origin, Profile, and Specialty Revival
A guide to Rwandan coffee — the bourbon varieties grown at altitude in the Virunga and Congo Nile ridge regions
- Beans, Roasts & Origins
Philippine Coffee: Kapeng Barako and Liberica
A guide to Philippine coffee — the history of Kapeng Barako (Coffea liberica var. barako), the 1880s leaf rust devastation
- Beans, Roasts & Origins
Kissaten: Japan's Historic Coffee Shop Culture
The history of the Japanese kissaten — how it emerged in the Meiji era, reached 170,000 establishments in the 1980s
- Beans, Roasts & Origins
Indian Coffee: Monsoon Malabar and Filter Kaapi
A guide to Indian coffee — the growing regions of Karnataka, Kerala, and Andhra Pradesh, the unique Monsoon Malabar processing method
- Beans, Roasts & Origins
Honey Process Coffee: Yellow, Red, and Black Honey
What honey process coffee is, how it differs from washed and natural processing, the science of mucilage retention, and why yellow, red
How we work
Editorial standards
Coffee Studies is published by Nature Lion Inc., the Canadian company behind Shyne Coffee. Editorial content is written to be useful on its own: cautious language, citations to research and official data, and a clear line between what studies show and what they do not. Sponsored placements are always labelled.
Read our editorial approach →