Printed from smellbook.com/smells/watermelon. This printout keeps the entry for Watermelon itself: its description, reference card, Connections, questions, evidence, related smells, record details, states, names and citation. It leaves out your own notes, the map, the lists of paths, routes, stories and fragrance directions, and the lists headed “Also linked to” (other entries that share its place or material) and “Linked from”; they are on the page online. The entries this one links to are still printed under Connections and Related smells.
Categories and types group entries for browsing; they are editorial, not evidence. How smells are grouped.
A watery fresh fruit smell with green rind and light sweet summer associations.
Its type, Source, means the smell is named after “a physical origin that can contribute a smell”; it is not an evidence source, such as a study or a book. The origin page for Watermelon (the food or drink, not this smell entry) lists every smell recorded as coming from it.
Watermelon smells watery, fresh and lightly sweet, with a cool green note from the rind. EDITORIAL
Named in the VERIFIED claims about this smell: not a list of what it is made of, and not its cause.
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Links SmellBook records for this entry: what it comes from, where you meet it, molecules and related smells. EDITORIAL links are chosen by SmellBook editors and VERIFIED links come from VERIFIED claims. Nothing here is a ranking, and a molecule is not presented as the cause of the smell.
QUESTIONS ABOUT WATERMELON
Watermelon smells watery, fresh and lightly sweet, with a cool green note from the rind. It is soft rather than strong, almost like cucumber with a touch of sugar, and the smell is clearest at the moment the fruit is cut open. Riper slices carry a gentle candy-like sweetness, while the rind stays grassy and crisp.
It is met at summer tables, picnics and barbecues, at market stalls in warm weather, and in fruit salads and chilled drinks. Many people link it with holidays, outdoor meals and cutting a large melon on a hot day.
Typical settings: summer table, picnic, fresh fruit.
SmellBook links it to one place page: see it in Connections.
One VERIFIED scientific claim from one published source is recorded for this entry: C9 aldehydes in watermelon aroma. This claim says only what its source supports, in the scope shown with it.
The scientific study behind this evidence is chemistry or emission work, not a study of how the smell is perceived.
4 molecules are named in this claim; see the evidence for the role the claim gives them. Each molecule this claim names has only the role the claim states; one molecule is not the whole smell.
Watermelon is a light fresh-fruit profile with strong seasonal and cultural associations.
Words that are easy to mix up: Is fresh the same as clean?, How do green and herbal differ? and Is citrus a kind of fresh?
No historical source or heritage record is linked to this entry yet.
Answers marked EDITORIAL are written by SmellBook editors to describe the experience and add no scientific fact. Answers marked VERIFIED point to claims on published sources, checked against each source's own summary where one was available (each claim's page says how); what each claim supports is in its own text and scope.
Scientific evidence · 1 claim
C9 aldehydes in watermelon aroma
In fresh juice of five watermelon varieties, the C9 aldehydes (Z)-6-nonenal, (E,Z)-2,6-nonadienal, (E)-2-nonenal and (E,E)-2,4-nonadienal contributed more to the aroma than the alcohols, because of their lower odour thresholds.
Fresh juice of five varieties from one region; the main volatiles differed between variety groups.
How this was found: Odour activity estimate. Compounds were measured and compared with known odour thresholds; nobody smelled this sample to confirm it. Source: primary study; chemistry work.
Ye Liu, Congcong He & Huanlu Song
DOI 10.1016/j.foodres.2018.02.022Each molecule is named by the claim shown after it. Each molecule named here has only the role the claim states; one molecule is not the whole smell. About molecules in SmellBook
Links chosen by SmellBook editors, not a ranking.
Associations can vary strongly by person, place and culture.
PATHS FROM HERE
Each step is a relationship SmellBook editors recorded in the knowledge graph, named as it is published there. Paths are not ranked or personalised, and they do not mean the smells smell alike.
Each step is a molecule that a VERIFIED claim names for both smells, in whatever role the claims state. Sharing a molecule does not mean two smells smell alike.
MY SMELLBOOK · LOCAL ONLY
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WHERE THIS SMELL APPEARS
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FOR RESEARCHERS AND EDITORS
Identity, revision history, corrections and how to cite Watermelon.
CULTURAL: This entry's associations depend on context, language, memory or culture; its description and smell words are editorial. It says nothing about research or historical evidence; evidence for this entry is shown separately: VERIFIED.
A state says how an entry is met, such as wet, aged or roasted. It does not create a new smell, and it adds no scientific fact by itself: states marked EDITORIAL come from the entry's own records, and only those marked VERIFIED are reported by a VERIFIED claim.
How this entry is identified and named, for citing it or matching it with other records.
SmellBook SB-0128 — Watermelonsmellbook:smell:watermelonhttps://smellbook.com/smells/watermelonSmellBook. (2026). Watermelon (revision 3, 2026-10-06). SmellBook Public Atlas. smellbook:smell:watermelon. https://smellbook.com/smells/watermelon@misc{smellbook_watermelon_r3,
author = {{SmellBook}},
title = {Watermelon},
year = {2026},
note = {SmellBook Public Atlas, revision 3, 2026-10-06, smellbook:smell:watermelon},
url = {https://smellbook.com/smells/watermelon}
}TY - ENCYC ID - smellbook-watermelon-r3 TI - Watermelon AU - SmellBook T2 - SmellBook Public Atlas PY - 2026 DA - 2026/10/06 ET - revision 3 UR - https://smellbook.com/smells/watermelon N1 - SB-0128; smellbook:smell:watermelon; resolver https://smellbook.com/id/smell/watermelon ER -
The citation names revision 3 of 2026-10-06, so a reader can tell exactly which version was cited. Citing records what was read; it does not grant a licence.
Watermelon is a light fresh-fruit profile with strong seasonal and cultural associations.
Other entries whose editors linked to Watermelon:
Editorial description expanded to answer what it smells like and where you meet it; independently reviewed.
Created 2026-09-22 · Updated 2026-10-06Dataset history In the SmellBook dataset since the first of three dataset releases of 2026-09-30.
No correction notices published for this entry. Corrections policyEVIDENCE MATTERS
SmellBook separates cultural association, community perception, verified evidence, prediction and experimental relationships rather than presenting them as the same thing. Read the evidence guide ↗ See the evidence coverage report ↗