![[SRC-139] Retronasal route and flavor dominance (PDF sheet 19)](https://images.spr.so/cdn-cgi/imagedelivery/j42No7y-dcokJuNgXeA0ig/f9faaa5a-12e7-445b-ab82-4c95c0f0f700/attachment-4c9836e8-5dbd-420f-8f7b-ee710b211b04-us_whiskey_academy/w=1920,quality=90,fit=scale-down)
![[SRC-139] Retronasal route and flavor dominance (PDF sheet 19)](https://images.spr.so/cdn-cgi/imagedelivery/j42No7y-dcokJuNgXeA0ig/95dc2f1d-5993-42f1-a7c0-c08fe42504f7/whiskey_research/w=1920,quality=90,fit=scale-down)
Dominance is a general model; precise contribution varies by stimulus and condition.
The passage introduces the book's central theses.
The book distinguishes retronasal smell from orthonasal sniffing and argues that smell delivered from the mouth is a dominant contributor to flavor.
PDF sheet 19
Retronasal route and flavor dominance
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Verification checklist
Fresh source check — 2026-09-28
The paraphrase at supplied PDF sheet 19 remains supported as the author's general thesis. Read together with sheets 45–49: the nose-pinch demonstration distinguishes characteristic aroma from retained taste and oral sensation, and does not measure a universal smell percentage. Sheets 41–42 move from a human-superiority assertion to acknowledged speculation about canine retronasal flow. Retain the route distinction; do not turn the argument into a quantified or species-ranking claim. These are review annotations, not new quotations.