CHIZU — the atlas of coffee research
Coffee research in Costa Rica
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 785 papers are 785 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.
Costa Rica is a coffee-producing country.
Check it yourself
This is not our word for it. You can run the same query against the same index.
When they were written
1954–2026
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
- Functional properties of coffee and coffee by-products2011cited 832open access
- Shade management in coffee and cacao plantations1998cited 634
- The coffee rust crises in Colombia and Central America (2008–2013): impacts, plausible causes and proposed solutions2015cited 603open access
- Integrating Agricultural Landscapes with Biodiversity Conservation in the Mesoamerican Hotspot2008cited 586open access
- Coffee, CYP1A2 Genotype, and Risk of Myocardial Infarction2006cited 492open access
- Shade management in coffee and cacao plantations1997cited 449
- Temporary immersion systems in plant micropropagation2002cited 428
- Molecular characterisation and origin of the Coffea arabica L. genome1999cited 386
- Fruit thinning and shade improve bean characteristics and beverage quality of coffee (Coffea arabica L.) under optimal conditions2005cited 384
- Climate change impacts and adaptation among smallholder farmers in Central America2018cited 328open access
Which stage of coffee
Only 30.2% of the whole index carries a stage label. Of this country's 785 papers, 320 carry one. The breakdown below is about those 320 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 785 papers, 641 carry one. The breakdown below is about those 641 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. Costa Rica has 785 — 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