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Three cooks, two bakers, and a worker in a grocery store were occupationally exposed to buckwheat flour and developed immediate allergy to buckwheat, which was confirmed by skin prick testing and measurement of specific immunoglobulin E antibodies. Four of the patients were diagnosed with occupational asthma, four with occupational rhinitis, and two with occupational contact urticaria caused by buckwheat. Three of the six patients suffered anaphylaxis as consequence of their occupational buckwheat allergy after ingestion of food that contained buckwheat. The high rate of life\u2010threatening reactions, together with a short exposure time to buckwheat before sensitization occurred in these cases, highlights the importance of a detailed occupational history and a high index of suspicion for occupational food allergens.<\/jats:p>","DOI":"10.1002\/ajim.23185","type":"journal-article","created":{"date-parts":[[2020,9,18]],"date-time":"2020-09-18T05:57:25Z","timestamp":1600408645000},"page":"1047-1053","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":22,"title":["Occupational buckwheat allergy as a cause of allergic rhinitis, asthma, contact urticaria and anaphylaxis\u2014An emerging problem in food\u2010handling occupations?"],"prefix":"10.1002","volume":"63","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-3592-1072","authenticated-orcid":false,"given":"Soile","family":"Jungewelter","sequence":"first","affiliation":[{"name":"Occupational Medicine Finnish Institute of 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