{"kind":"smellbook-citation-package","schemaVersion":"1.0","entry":{"name":"Hay","recordId":"SB-0062","urn":"smellbook:smell:hay","resolver":"https://smellbook.com/id/smell/hay","url":"https://smellbook.com/smells/hay","revision":3,"updatedAt":"2026-10-06"},"cite":{"text":"SmellBook. (2026). Hay (revision 3, 2026-10-06). SmellBook Public Atlas. smellbook:smell:hay. https://smellbook.com/smells/hay","bibtex":"@misc{smellbook_hay_r3,\n  author = {{SmellBook}},\n  title = {Hay},\n  year = {2026},\n  note = {SmellBook Public Atlas, revision 3, 2026-10-06, smellbook:smell:hay},\n  url = {https://smellbook.com/smells/hay}\n}","ris":"TY  - ENCYC\nID  - smellbook-hay-r3\nTI  - Hay\nAU  - SmellBook\nT2  - SmellBook Public Atlas\nPY  - 2026\nDA  - 2026/10/06\nET  - revision 3\nUR  - https://smellbook.com/smells/hay\nN1  - SB-0062; smellbook:smell:hay; resolver https://smellbook.com/id/smell/hay\nER  - "},"dataset":{"release":"2026-11-11","export":"https://smellbook.com/data/graph-export.json","sha256":"6e1112d672ccd0f7b5a892a2dde1dbb45f737814a338891970d3a4e25ba72e18","releases":"https://smellbook.com/dataset-releases"},"evidence":[{"evidenceClass":"scientific","label":"Scientific evidence","claims":[{"id":"CLM-HAYDRYING-001","urn":"smellbook:claim:volatiles-released-as-cut-grass-dries","resolver":"https://smellbook.com/id/claim/volatiles-released-as-cut-grass-dries","title":"Volatiles released as cut grass dries","text":"In laboratory measurements, cut grass and clover released a burst of volatile compounds when cut, followed by a second, more intense emission lasting several hours as the plants began to dry, with enhanced emissions of methanol, acetaldehyde, acetone and butanone besides the (Z)-3-hexenal, (Z)-3-hexenol and hexenyl acetate released on wounding.","scope":"Freshly cut grass and clover drying in a laboratory; the source does not mention haymaking or study finished hay, and it measures emissions, not odour.","supportCheck":{"method":"phrase-in-abstract","description":"The statement the claim rests on was found word for word in the abstract fetched from the named service, and an editor read the full abstract against every part of the claim."},"sources":[{"id":"SRC-GRASSDRYING-1999","urn":"smellbook:source:volatiles-from-drying-grass-1999","resolver":"https://smellbook.com/id/source/volatiles-from-drying-grass-1999","kind":"PRIMARY RESEARCH","title":"Emissions of volatile organic compounds from cut grass and clover are enhanced during the drying process","authors":"Joost A. de Gouw, Carleton J. Howard, Thomas G. Custer & Ray Fall","publisher":"Geophysical Research Letters","date":"1999-04","doi":"10.1029/1999gl900076","url":"https://doi.org/10.1029/1999gl900076","passages":[],"citationCheck":{"method":"crossref","checkedOn":"2026-10-05","dateConfirmedTo":"month"}}]}]},{"evidenceClass":"historical","label":"Historical evidence","claims":[{"id":"CLM-HAY-001","urn":"smellbook:claim:coumarin-and-good-hay-in-1911","resolver":"https://smellbook.com/id/claim/coumarin-and-good-hay-in-1911","title":"Coumarin and good hay in 1911","text":"The 1911 Encyclopædia Britannica's article on hay as fodder says good hay should come out green and smelling of coumarin, the substance it credits with the scent of new-mown hay.","scope":"A reference work describing hay quality in its own time; SmellBook records what it says, not a present-day analysis of hay.","supportCheck":{"method":"passage-in-page-text","description":"The statement the claim rests on was found word for word in the text of the cited page or chapter of the digitised source, fetched from the named service, and an editor read that whole text against every part of the claim. The passage is cited by its locator; SmellBook does not reproduce the passage."},"sources":[{"id":"SRC-EB1911-HAY","urn":"smellbook:source:encyclopaedia-britannica-hay-1911","resolver":"https://smellbook.com/id/source/encyclopaedia-britannica-hay-1911","kind":"HISTORICAL RECORD","title":"Hay (fodder)","authors":"Unsigned","publisher":"Encyclopædia Britannica, 11th edition","date":"1911","doi":null,"url":"https://en.wikisource.org/wiki/1911_Encyclop%C3%A6dia_Britannica/Hay_(fodder)","historicalForm":"printed-book","holdingInstitution":"Internet Archive (digitised copy)","catalogueRecord":"https://archive.org/details/EncyclopaediaBritannica1911HQDJVU","passages":[{"locator":"p. 109","pageUrl":"https://en.wikisource.org/wiki/Page:EB1911_-_Volume_13.djvu/122","period":"1911","periodBasis":"publication-date"}],"citationCheck":{"method":"catalogue-record","checkedOn":"2026-10-05","dateConfirmedTo":"year"}}]}]}],"evidenceBoundary":"Claims are grouped by evidence class and never merged. 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