Jar

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A jar filled with jam.

A jar is a type of container, mostly used to store food. Jars are usually cylindrical, and are usually made of glass or clay.

Glass jars are able to be heated in microwave ovens.[1]

Types of jars[change | change source]

References[change | change source]

  1. Ahvenainen, R.; 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. Retrieved 2 October 2013.