What is my lunch reacting with?

[Jonny69]

WTF. Second day running and the foil my sandwiches is wrapped in is all corroded and full of holes. I'm getting worried now. I don't think I'm doing anything different; same old stuff in the sandwiches, same other stuff in my lunch, same plastic carrier bag, except the inside is covered in some kind of aluminium slurry from the foil.

Help me

 

[One More Solo]

Same brand of foil?

 

[Wossi]

Tried different foil? Could be the stuff you are using is radioactive.

 

[Phate]

Johnny.....you and your cooking exploits...

I think the first question is, have you been putting sulphuric acid in your sandwiches again?

 

[Mobius 1]

be a man and get it down your neck

 

[Biohazard]

WTF. Second day running and the foil my sandwiches is wrapped in is all corroded and full of holes. I'm getting worried now. I don't think I'm doing anything different; same old stuff in the sandwiches, same other stuff in my lunch, same plastic carrier bag, except the inside is covered in some kind of aluminium slurry from the foil.

Help me

Condensation carried along from fridge if you are making them the night before?

 

[Antar Bolaeisk]

Have you changed the detergent you're washing your lunchbox with?

Edit: bah, it's a bag not a lunch box. Should have read the op properly.

 

[Phate]

Is this the end of Johnny?

 

[bledd]

pics with hovi...

should be easy!

 

[Guerrilla]

Could be Nano bots

 

[Voltar]

Don't put them in foil until the day you eat them. If you make it the night before then leave the sandwich in the fridge without foil then foil it in the morning.

Better still to avoid soggy bread is to use tupperware so then no worries re foil corrosion from fridge condensation.

 

[Firestar_3x]

GF putting Hydrochloric Acid in the bread?

 

[Darg]

http://www.keytometals.com/Article14.htm

Have you been dipping your sandwich in the swimming pool again?

 

[Jonny69]

Same foil, same brand, make them in the morning before work and all eaten up and gone, despite the black bits and metallic taste

GF putting Hydrochloric Acid in the bread?

Hold on, I knew it could be HER

 

[Clum]

Sandwitch terorists/Nanomites/Sandwitch pirates/Sandwitch AIDS

On a more serious note, do you have ketchup on your sandwitches? Its pretty acidic (pH 3.85)and will oxidise the foil if left in contact with it for a while. Alumunium oxide sandwitches are not om nom nom.

Things like BBQ sauce will probably be a similar level of acidity.

 

[sbi5ar]

I think some bacteria can corode foil......

 

[slamyourself]

I think some bacteria can corode foil......

That is a very insightful post, pray tell where did you come accross this extreemly in-depth information?

 

[Dup]

Are you using any new cleaning stuff on your surfaces?

 

[Malt_Vinegar]

I demand pics! I will show them to my Lady, she is an industrial chemist, and might be able to help

Foil is typically 99.9% aluminum, so it could be you have a dodgy batch, which is reacting with something salty? (Im not an expert here, and am probably barking totally up the wrong tree)

 

[LeJosh]

Time for new bags and foil me thinks. Very odd.