Printed from smellbook.com/smells/metal. This printout keeps the entry for Metal 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.
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A cool metallic smell reference associated with coins, tools, railings and industrial materials.
Metal smells cool, sharp and slightly sour, with a mineral, blood-like or coin-like note that feels clean and hard. EDITORIAL
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QUESTIONS ABOUT METAL
Metal smells cool, sharp and slightly sour, with a mineral, blood-like or coin-like note that feels clean and hard. The smell is faint in the air but becomes strong on the hands after touching coins, keys or railings. It is close to the smell of tools and machinery, though without oiliness. Many people describe it as tangy rather than fragrant.
In SmellBook’s words: metallic, cool, sharp and industrial.
People meet it when handling coins and keys, holding railings on stairs or trams, and using tools in workshops. It often lingers on the fingers after gripping metal handles or bars.
Typical settings: coins, tools, metal railing.
SmellBook links it to one place page: see it in Connections.
Material: Metal.
One VERIFIED scientific claim from one published source is recorded for this entry: The metallic smell of touched iron. This claim says only what its source supports, in the scope shown with it.
It also has one historical source, which records what was written without stating the time described, not a scientific finding: see its historical records.
Metallic smell perception can depend on context and contact; this page avoids claiming one universal metal odor chemistry.
Words that are easy to mix up: Is metallic the same as mineral?
One historical source describes it. It describes a time it does not state, no later than its publication, not the present: see its date in Connections; the sources are with the evidence below.
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
How it is described or perceived
The metallic smell of touched iron
The authors report that the metallic smell noticed after touching iron tools or coins is a type of human body odour, linked to the breakdown of peroxides on the skin; rust, drinking water and blood containing ferrous ions cause a similar metallic odour.
Iron tools and coins handled by people; the source does not study railings or cold outdoor metal, so it applies to them only as touched iron, and the abstract names no single compound.
Also covers: chemistry reported (the claim names compounds or kinds of compounds).
How this was found: Broad account. A broad statement about how an aroma forms, how it is studied or what a term means, rather than one measurement. Source: primary study.
Dietmar Glindemann, Andrea Dietrich, Hans-Joachim Staerk & Peter Kuschk
Angewandte Chemie International Edition
DOI 10.1002/anie.200602100Historical evidence · 1 claim
Why handled metals smell, as reported in 1898
An unsigned 1898 note in Popular Science Monthly reports W. E. Ayrton's observation that most commercial metals lost their smell when cleaned but acquired characteristic smells when handled or rubbed, and that breathing on cleaned metals also produced a smell; Ayrton looked for the source of these smells in hydrogen given off and carrying impurities such as hydrocarbons, and thought it probable that no metal particles reach the nose.
A contemporary summary of a scientific address, kept as historical evidence of how the question was understood in 1898; it is not current scientific evidence.
How this was found: Historical text. A published historical text, read on a digitised page; it records what was written when it was published. Source: historical record.
Passage: p. 283. Published December 1898, the latest time it can describe; not the present.
Unsigned
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Associations can vary strongly by person, place and culture.
PATHS FROM HERE
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WHERE THIS SMELL APPEARS
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FROM SMELLBOOK STORIES
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FOR RESEARCHERS AND EDITORS
Identity, revision history, corrections and how to cite Metal.
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.
How this entry is identified and named, for citing it or matching it with other records.
SmellBook SB-0045 — Metalsmellbook:smell:metalhttps://smellbook.com/smells/metalSmellBook. (2026). Metal (revision 4, 2026-10-06). SmellBook Public Atlas. smellbook:smell:metal. https://smellbook.com/smells/metal@misc{smellbook_metal_r4,
author = {{SmellBook}},
title = {Metal},
year = {2026},
note = {SmellBook Public Atlas, revision 4, 2026-10-06, smellbook:smell:metal},
url = {https://smellbook.com/smells/metal}
}TY - ENCYC ID - smellbook-metal-r4 TI - Metal AU - SmellBook T2 - SmellBook Public Atlas PY - 2026 DA - 2026/10/06 ET - revision 4 UR - https://smellbook.com/smells/metal N1 - SB-0045; smellbook:smell:metal; resolver https://smellbook.com/id/smell/metal ER -
The citation names revision 4 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.
Metallic smell perception can depend on context and contact; this page avoids claiming one universal metal odor chemistry.
Other entries whose editors linked to Metal:
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 ↗