CHIZU — the atlas of coffee research
Coffee research in France
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 3,072 papers are 3,072 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.
France 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
1892–2026
3,069 of the 3,072 papers carry a year. The rest have none.
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
- Dietary Intake and Bioavailability of Polyphenols2000cited 3,639
- Dietary Polyphenols and the Prevention of Diseases2005cited 2,963
- Genome sequence of the metazoan plant-parasitic nematode Meloidogyne incognita2008cited 1,302open access
- The coffee genome provides insight into the convergent evolution of caffeine biosynthesis2014cited 666open access
- The Effects of Coffee and Napping on Nighttime Highway Driving2006cited 651
- The coffee rust crises in Colombia and Central America (2008–2013): impacts, plausible causes and proposed solutions2015cited 603open access
- Chlorogenic Acids from Green Coffee Extract are Highly Bioavailable in Humans2008cited 572
- Risk factors for hip fracture in european women: The MEDOS study1995cited 570
- On the links between stock and commodity markets' volatility2013cited 547
- The Safety of Ingested Caffeine: A Comprehensive Review2017cited 547open access
Which stage of coffee
Only 30.2% of the whole index carries a stage label. Of this country's 3,072 papers, 1,153 carry one. The breakdown below is about those 1,153 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 3,072 papers, 2,465 carry one. The breakdown below is about those 2,465 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. France has 3,072 — a factor of 7.
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 3,111Japan 2,822Colombia 2,489Spain 2,363Canada 2,352