CHIZU — the atlas of coffee research
Coffee research in Poland
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 1,222 papers are 1,222 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.
Poland 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
1978–2026
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
- Potential Health Benefits of Olive Oil and Plant Polyphenols2018cited 645open access
- Crop responses to elevated CO2 and interactions with H2O, N, and temperature2016cited 498
- Stress Echocardiography Expert Consensus Statement--Executive Summary: European Association of Echocardiography (EAE) (a registered branch of the ESC)2008cited 355open access
- Dietary polyphenols and type 2 diabetes: Human Study and Clinical Trial2018cited 290
- Chlorogenic acids, caffeine content and antioxidant properties of green coffee extracts: influence of green coffee bean preparation2016cited 276open access
- Lifestyle management of hypertension: International Society of Hypertension position paper endorsed by the World Hypertension League and European Society of Hypertension2023cited 271open access
- Acrylamide in human diet, its metabolism, toxicity, inactivation and the associated European Union legal regulations in food industry2019cited 256
- The content of polyphenols in coffee beans as roasting, origin and storage effect2019cited 244open access
- Neuroprotective Effects of Coffee Bioactive Compounds: A Review2020cited 243open access
- Estimated dietary intake and major food sources of polyphenols in the Polish arm of the HAPIEE study2014cited 239open access
Which stage of coffee
Only 30.2% of the whole index carries a stage label. Of this country's 1,222 papers, 572 carry one. The breakdown below is about those 572 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 1,222 papers, 999 carry one. The breakdown below is about those 999 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. Poland has 1,222 — a factor of 18.
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