Jar

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Yeast extract in a jar.
A jar of yeast extract.
Candy jar, by Christian Dorflinger, 1869–1880, glass, diameter: 12.1 cm, Cleveland Museum of Art (USA)
Hexagonal jar decorated with flowers and birds, late 17th century, porcelain with overglaze enamels, height: 31.1 cm, diameter: 19.1 cm, Metropolitan Museum of Art (New York City)

A jar is a rigid, cylindrical or slightly conical container, typically made of

cork stopper, roll-on cap, crimp-on cap, press-on cap, plastic shrink, heat sealed lidding film, an inner seal, a tamper-evident band, or other suitable means. The English word "jar" originates from the Arabic word jarra, which means an earthen pot or vessel.[1][2]

Background

Jars can be used to hold solids too large to be removed from, or liquids too viscous to be poured through a bottle's neck; these may be foods, cosmetics, medications, or chemicals.[3] Glass jars—among which the most popular is the mason jar—can be used for storing and preserving items as diverse as jam, pickled gherkin, other pickles, marmalade, sun-dried tomatoes, olives, jalapeño peppers, chutneys, pickled eggs, honey, and many others.[citation needed]

Types

  • Bell jar - typically used in scientific laboratories to produce a vacuum; also used in Victorian times for display purposes
  • Cookie jar - typically ceramic or glass, common in the United States, Canada, and United Kingdom
  • Killing jar - used to kill captured insects
  • Leyden jar - a historical electrical capacitor
  • Specimen jar - an
    instrument used in anatomy
    to preserve specimens
  • Apothecary jar
    - historically for storage of medicines; made of ceramics or more typically in modern centuries, clear glass. Typically cylindrical or with rotationally symmetric decorative curves, sometimes with a glass disc foot separated from the main body. Modern glass versions are also used for artistic display of the contents.
Modern glass food storage jars come in a variety of shapes, all of which have a circular opening on top for screwing on a lid
[4]
  • Economy round or wide mouth jars - tall but rotund cylinder slightly rounded at the top and bottom, relatively wide with a wide mouth, commonly used for sauces like a mayonnaise
  • Paragon jars - tall and narrow cylinder, commonly used for pickled foods like olives
  • French square or Victorian jars - roughly a small cube
  • Spice jars - small cylinder or rectangular cuboid
  • Hexagon or hex jars -
    regular hexagonal prism
  • Mason jars - moderately tall cylinder typically used in home canning, sealed with a metal lid
  • Kilner jar - similar to a Mason jar but sealed with rubber
  • Straight-sided jars - cylinders with no neck. Squat straight-sided jars are suitable for creams which can be scooped out.
Ancient ceramic types include
  • Amphora - large, but typically holding under 50 L
  • Pithos - very large, typically the size of a person and holding hundreds of liters
  • canopic jar

Utility

Jars are

microwavable.[5]

Some regions[

recycling code for the material.[6]

Gallery

  • Preserved food in Mason jars
    Preserved food in Mason jars
  • Reusable jam jar with flip-top or bail closure
    Reusable jam jar with flip-top or bail closure
  • Jar made of PLA-blend bio-flex, a bioplastic
    Jar made of PLA-blend bio-flex, a bioplastic
  • Candy jar
    Candy jar
  • Peanut butter
    Peanut butter
  • Six types of "earthenware jar" in Spain
    Six types of "earthenware jar" in Spain
  • Brown-glazed jar with design of three fish. Yuan Dynasty.
    Brown-glazed jar with design of three fish.
    Yuan Dynasty
    .
  • PP jar of skin cream with pump dispenser
    PP jar of skin cream with pump dispenser

See also

References

External links

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