What is my lunch reacting with?

I've solved this by thinking logically:

These holes are just randomly appering out of nowhere correct?

So I ask myself what do we usually relate to mysterious acts of unexplained destruction?

Then arrived at the answer... Ninjas! They've obviously got a grudge against your sandwiches!
 
I switched to a Sainsburys bag today and there is no reaction.

I think it was the working class Lidl foil rearing up against the upper class Waitrose shopping bag. I knew it was a class thing :D
 
Contamination with a differing brand of foil? You might have solved this little problem but surely you want to find out WHY!

I expect to see a full list of planned chemical tests before COP today (Friday 6th Nov 09), and comparison between the differing compositions or materials taken from teh Galvanic series.

This corrosion is serious business, so please refrain from constructing any sandwich composites for the time being until the root cuase of the problem has been identified.
 
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It's angry becasue you called it lunch. Working class foil would call it dinner and rightly so.
 
Jonny69 said:
I switched to a Sainsburys bag today and there is no reaction.

I think it was the working class Lidl foil rearing up against the upper class Waitrose shopping bag. I knew it was a class thing :D
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:D

I don't think I've ever been to a Lidl, good thing really else I may start to dissolve! :D
 
Freefaller said:
I don't think I've ever been to a Lidl, good thing really else I may start to dissolve! :D
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So you think the sticky floor may be a chemical reaction between a pair of shoes that aren't from Shoe Land and a class-biological floor surface? I think I read something about that in New Scientist.
 
Massive bump but I just heard of lasagna cells and they reminded me of this thread. Don't suppose you had any steel in those sandwiches did you?
Lasagna cell
A "lasagna cell" is accidentally produced when salty food such as lasagna is stored in a steel baking pan and is covered with aluminium foil. After a few hours the foil develops small holes where it touches the lasagna, and the food surface becomes covered with small spots composed of corroded aluminium.[6]
In this example, the salty food (e.g. lasagna) is the electrolyte, the aluminium foil the anode and the steel pan the cathode. If the aluminium foil only touches the electrolyte in small areas, the galvanic corrosion is concentrated and corrosion can occur fairly rapidly.
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I thought it was such a cool name I had to tell someone.
 
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