CHIZU — the atlas of coffee research
Coffee research in Iran
Two limits come with this count. Only 100,474 of the 190,643 searchable papers (52.7%) carry an author affiliation country. The other 90,169 (47.3%) carry none. So these 793 papers are 793 out of the 100,474 whose affiliation is known. And a co-authored paper is counted once for every country its authors sit in. Per-country counts therefore do not add up to the whole.
Iran does not grow coffee, but coffee is researched there.
Check it yourself
This is not our word for it. You can run the same query against the same index.
When they were written
2000–2026
Years before 1600 are treated as unknown. The upstream data (OpenAlex) sometimes writes 1400 when the year is missing, and that is a placeholder, not a measurement.
Where they appeared
Top 8 sources (journals and repositories)
Most cited
10 papers, most cited first
- Chlorogenic acid (CGA): A pharmacological review and call for further research2017cited 1,554
- Reproducibility and Relative Validity of Food Group Intake in a Food Frequency Questionnaire Developed for the Tehran Lipid and Glucose Study2010cited 916open access
- The potential effects of chlorogenic acid, the main phenolic components in coffee, on health: a comprehensive review of the literature2017cited 801
- Unjamming and cell shape in the asthmatic airway epithelium2015cited 730open access
- High‐temperature beverages and foods and esophageal cancer risk—A systematic review2009cited 324open access
- Risk factors for stomach cancer: a systematic review and meta-analysis2020cited 319open access
- Fungal Planet description sheets: 785– 8672018cited 283open access
- Applications of green synthesized Ag, ZnO and Ag/ZnO nanoparticles for making clinical antimicrobial wound-healing bandages2018cited 258
- Association between sedentary behavior and low back pain; A systematic review and meta-analysis2021cited 224open access
- The use of nanotechnology to increase quality and yield of fruit crops2019cited 192
Which stage of coffee
Only 30.2% of the whole index carries a stage label. Of this country's 793 papers, 371 carry one. The breakdown below is about those 371 papers only — the rest were never candidates for it.
One paper can carry several labels, so the breakdown adds up to more than that number.
Which field
Only 75.9% of the whole index carries a field label. Of this country's 793 papers, 611 carry one. The breakdown below is about those 611 papers only — the rest were never candidates for it.
One paper can carry several labels, so the breakdown adds up to more than that number.
What language
"undetermined" means the upstream record carried no language. We did not guess one.
Knowledge is not evenly spread
Counting only papers whose author affiliation is known, the largest is Indonesia with 22,248. Iran has 793 — a factor of 28.
That gap does not follow where coffee is grown. Research gathers where the means to do research are, not where the coffee is. Making that visible is why CHIZU exists.
Other countries
Indonesia 22,248United States 17,988Brazil 10,857United Kingdom 5,569China 4,887India 3,542Germany 3,185Italy 3,111France 3,072Japan 2,822Colombia 2,489Spain 2,363