CHIZU — the atlas of coffee research
Coffee research in Belgium
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 909 papers are 909 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.
Belgium 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
1968–2026
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
- Risk factors for hip fracture in european women: The MEDOS study1995cited 570
- Public health importance of triggers of myocardial infarction: a comparative risk assessment2011cited 523
- An annotated taxonomic conspectus of the genus Coffea (Rubiaceae)2006cited 483
- Brain, conscious experience and the observing self2003cited 400open access
- Stress Echocardiography Expert Consensus Statement--Executive Summary: European Association of Echocardiography (EAE) (a registered branch of the ESC)2008cited 355open access
- Sustainability labels on coffee: Consumer preferences, willingness-to-pay and visual attention to attributes2015cited 353
- Risk Factors for Hip Fracture in Men from Southern Europe: The MEDOS Study1999cited 353
- A global meta-analysis of the biodiversity and ecosystem service benefits of coffee and cacao agroforestry2013cited 340
- Multimodal mental imagery2017cited 295open access
- Polymer based organic solar cells using ink-jet printed active layers2008cited 291open access
Which stage of coffee
Only 30.2% of the whole index carries a stage label. Of this country's 909 papers, 292 carry one. The breakdown below is about those 292 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 909 papers, 700 carry one. The breakdown below is about those 700 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. Belgium has 909 — a factor of 24.
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