What is the plastic piece inside of a Guinness (beer) bottle?

And what is it's purpose?
 
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14,995 IKU
Posted on Sep. 2nd, 2008
(Edited on Sep. 2nd, 2008)

appleifreebies, you seem to be new. you should have read the note that says don't plagiarize.

appleifreebies plagiarized his(her) answer from here:
http://answers.yahoo.com/question/index?qid=20070317164714AAv1PpN

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13,170 IKU
Posted on Sep. 3rd, 2008

thanx for the link chriska it seems to be a problem as of late

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383 IKU
Posted on Sep. 1st, 2008

On tap, Guinness is injected with a surge of nitrogen before serving, which gives the beer its creamy head and smooth texture. Unlike carbonated liquids, nitrogenated liquids cannot merely be canned or bottled without quickly going flat or spoiling, so Guinness patented a "widget" process to inject the gas into its retail versions of Draught upon opening.

Bottled Guinness uses a widget somewhat spear-like in shape near the top of the bottle which only releases gas when it comes in contact with the liquid. The widget in bottled Guinness is designed for multiple contacts with small volumes of the stout, i.e. drinking straight from the bottle. Its performance during continuous exposure to liquids is less than optimal, and as a result many believe it to be inferior to the canned version: the latter is believed to provide a more authentic recreation of Guinness' signature pour.

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