# brownish white foam

**URL:** <https://boards.straightdope.com/t/brownish-white-foam/569078>\
**Category:** Cecil's Columns/Staff Reports\
**Created:** [January 26, 2011, 6:51pm UTC](https://boards.straightdope.com/t/brownish-white-foam/569078 "2011-01-26T18:51:46Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Ricardo](https://avatars.discourse-cdn.com/v4/letter/r/a6a055/32.png) [@Ricardo](https://boards.straightdope.com/u/Ricardo)\
**Post date:** [January 26, 2011, 6:51pm UTC](https://boards.straightdope.com/t/brownish-white-foam/569078/1 "2011-01-26T18:51:46Z")

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The “brownish white foam” happens when the water is not hot enough to properly make tea, i.e. it hasn’t reached full boiling temperature.

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**Author:** ![TSBG](https://avatars.discourse-cdn.com/v4/letter/t/77aa72/32.png) [@TSBG](https://boards.straightdope.com/u/TSBG)\
**Post date:** [January 26, 2011, 8:01pm UTC](https://boards.straightdope.com/t/brownish-white-foam/569078/2 "2011-01-26T20:01:04Z")

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Great, now we’re back to the “how to make tea properly” conversation…

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**Author:** ![Igor70](https://avatars.discourse-cdn.com/v4/letter/i/bc79bd/32.png) [@Igor70](https://boards.straightdope.com/u/Igor70)\
**Post date:** [February 1, 2011, 3:01pm UTC](https://boards.straightdope.com/t/brownish-white-foam/569078/3 "2011-02-01T15:01:38Z")

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Apparently this poster is referring to the styrofoam cups article, [Why does tea make holes in plastic foam cups? - The Straight Dope](http://www.straightdope.com/columns/read/447/why-does-tea-make-holes-in-plastic-foam-cups), which is already the subject of another thread.