boiled potato maked metal shiny


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boiled potato maked metal shiny

Post by ssas » Tue Aug 15, 2006 1:16 pm

could anyone explain why the metal rubbed by boiled potato, and not a raw one, could become shiny.
What kind of acid or chemical substances are responsible for this?
thank you

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Post by alivingthing » Wed Aug 16, 2006 8:03 am

hot potato :lol:
马铃薯在烹饪过程中维生素C丢失 :?:

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King Cobra
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Post by Linn » Thu Aug 17, 2006 12:54 pm

Here is another thing I have never heard of. :)
Perhaps it is the high starch content. :?:

An other old folk remedy I have heard of is using a lightly bolied potato as a salve for inflamation and pain. Tried by friend of mine with terminal cancer and said it worked.
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King Cobra
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Post by victor » Sat Aug 19, 2006 12:20 pm

I think, because of it's the boiled one (have much heat), the starch content in the potato will get reacted with the metal oxide which surrounds the whole metal thus makes the metal looks a little bit dark...
With the removal of this metal oxide layer, you'll obtain a metal without its impurities..:lol:

Um, just try it to Aluminium and Magnesium metal (because both oxide layers can be seen as a really black layer).....
Q: Why are chemists great for solving problems?
A: They have all the solutions.

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