Jar

A jar is a rigid, cylindrical or slightly conical container, typically made of glass, ceramic, or plastic, with a wide mouth or opening that can be closed with a lid, screw cap, lug cap, 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.

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)

EtymologyEdit

The English word "jar" originates from the Arabic word jarra, which means an earthen pot or vessel.^[1]^[2]

CreationEdit

Jars are sterilised by putting them in a pressure cooker with boiling water or an oven for a number of minutes. Glass jars are considered microwavable.^[3]

UtilityEdit

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.^[4] 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.

TypesEdit

Bell jar in a laboratory
Cookie jar
Killing jar, used to kill captured insects
Kilner jar, for food storage
Leyden jar, a historical capacitor
Mason jar, for food storage
Specimen jar, an instrument used in anatomy to preserve specimens

GalleryEdit

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

ReferencesEdit

^ J. A. Abu-Haidar. Hispano-Arabic Literature and the Early Provencal Lyrics. Routledge. p. 228.
^ James E Glevin. The Modern Middle East: A History. Oxford University Press. p. 21.
^ Ahvenainen; Heiniö, R.-L. (1993). "Factors affecting the suitability of glass jars for heating in microwave ovens. Comparison with plastic jars and paper board tubs". Packaging Technology and Science. 6 (1): 43–52. doi:10.1002/pts.2770060108.
^ Yam, K. L., "Encyclopedia of Packaging Technology", John Wiley & Sons, 2009, ISBN 978-0-470-08704-6

External linksEdit

Media related to Jars at Wikimedia Commons
"Jar" . Encyclopædia Britannica. 15 (11th ed.). 1911.

[1] J. A. Abu-Haidar. Hispano-Arabic Literature and the Early Provencal Lyrics. Routledge. p. 228.

[2] James E Glevin. The Modern Middle East: A History. Oxford University Press. p. 21.

[3] Ahvenainen; Heiniö, R.-L. (1993). "Factors affecting the suitability of glass jars for heating in microwave ovens. Comparison with plastic jars and paper board tubs". Packaging Technology and Science. 6 (1): 43–52. doi:10.1002/pts.2770060108.

[4] Yam, K. L., "Encyclopedia of Packaging Technology", John Wiley & Sons, 2009, ISBN 978-0-470-08704-6

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Jar

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