Canned Tuna in fridge = wrong?

I opened a Can of Light Tuna. I ate half of it, then I put the open can in the fridge.
My mother took it out and put it in a plastic recipient. She claims that opened can products will spoil if they are put in a fridge. This made no sense to me.

Is she right?
Answer:
You never want to leave food in the original can once it is opened because it spoils easier and can become toxic, especially things like tomato juice or any kind of acidic foods.

Found this at the link below. The term "canned" refers to cans and jars but the first paragraph is referring to a metal can.

Q: How do I store canned food products once opened?

A: Once opened, canned food contents not eaten must be removed from the can. Store them in a covered, nonmetallic container in the refrigerator or freezer.

Canned food in glass jars may be stored in the original container. Use leftover canned food after 3 or 4 days of refrigeration, unless it contains meat; canned food containing meat, poultry or fish should be used within 2 days. Refrigerate the part not being used or eaten immediately after opening the can or jar. Do not save leftovers from cans or jars that have been out of refrigeration for more than 2 hours. Refrigerate cooked leftovers within 2 hours of cooking time.

Here is more information from a previous poster here at YA which covers it very well.

You should never leave food in a can after opening it for two reasons. First of all, the can is sealed in a vaccuum, and once opened, you allow the inside of the can to begin oxidizing with whatever liquid was inside. You dont want to eat rust. The second reason is that while the inside of the can is sterile, the outside is not. When you opened the can, you probably allowed the contents inside to come into contact with the outside of the lid when you cut it off. This introduces whatever bacteria/microorganisms that were on the outside of the can into the inside where it could grow and cause illness.

http://malaysia.answers.yahoo.com/questi...

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I have heard that too, but have left it in the can forever, only thing I can think of is the aluminum oxidizes and causes bacteria

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I dont think so...I never do and everythings good, but tuna = gross =P

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Your Mama is correct! (Moms usually are, you know!)

Once you open a can, the metal begins to oxidize. This will cause spoilage to occur to the contents of the can; and it happens quickly. Even if the contents are not actually touching the exposed metal. It is a chemical thing, and once again---Listen to your mother!

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ya, she is right, you should never store open food in the cans they come in.

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i /do / it / all the time / with no /ill effects

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yeah you cannot put canned products in the fridge with the container that it came in or theyll go bad so you have to put it in a different container i dont know why i just know i made my sister sick just kidding!

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spoil but also just bad for you. shes right.

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The lining of a tin will oxidize once opened. The oxidized material can be absorbed by the food, particularly if the food is acidic; this can cause illness.

Your mother is right - and you'll see this advice printed on many food wrappers including many cans.

As always - listen to your mother!

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Yes.
Always put the remainder of the food in a sealable container if you want to eat it another day, dont leave it in a can. You may get ill otherwise.

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She's right but this is the wrong section 4 this question.

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Yes. The tuna and the metal of the can will react and spoil the tuna if the fish is left exposed. Ptomaine poisoning is not a good thing to get at any time in your life.

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