Tin foil, also spelled tinfoil, is a thin
foil made of
tin. Tin foil was superseded after
World War II
World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the World War II by country, vast majority of the world's countries—including all of the great power ...
by cheaper and more durable
aluminium foil
Aluminium foil (or aluminum foil in North American English; often informally called tin foil) is aluminium prepared in thin metal leaves with a thickness less than ; thinner gauges down to are also commonly used. Standard household foil is typ ...
, which is still referred to as "tin foil" in many regions (an example of a
misnomer
A misnomer is a name that is incorrectly or unsuitably applied. Misnomers often arise because something was named long before its correct nature was known, or because an earlier form of something has been replaced by a later form to which the name ...
).
History
Foil made from a thin leaf of tin was commercially available before its aluminium counterpart. In the late 19th century and early 20th century, tin foil was in common use, and some people continue to refer to the new product by the name of the old one. Tin foil is stiffer than aluminium foil.
It tends to give a slight tin taste to food wrapped in it, which is a major reason it has largely been replaced by aluminium and other materials for wrapping food.
Because of its corrosion resistance, oxidation resistance, availability, low cost, low toxicity, and slight malleability, tin foil was used as a filling for
tooth cavities prior to the 20th century.

The first audio recordings on
phonograph cylinder
Phonograph cylinders are the earliest commercial medium for recording and reproducing sound. Commonly known simply as "records" in their era of greatest popularity (c. 1896–1916), these hollow cylindrical objects have an audio recording engr ...
s were made on tin foil.
See also
*
Tin foil hat
A tin foil hat is a hat made from one or more sheets of aluminium foil (commonly called "tin foil" in the United States and New Zealand), or a piece of conventional headgear lined with foil, often worn in the belief or hope that it shields the ...
*
List of common misnomers
References
Tin
Metallic objects
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