why shouldn't you store food in open tin cans?

Question

half a tin of beans left, for example, we're advised to decant the contents into a plastic container instead of leaving the contents in the tin (covered or not) and storing it in the fridge. why exactly is this?

Answer 1

10.10.03 -- Tinned Food


Republished with permission from the Food Standards Agency web site, www.NutraIngredients.com, July 23, 2002

The Agency does not recommend storing food in open tin cans. It's best to place leftover food in a sealable container that can be stored in the fridge or freezer.

The shelf life of sealed canned goods is set so that, under normal circumstances, any tin content in the food remains well below the legal safety limit of 200 milligrams per kilogram of food. This limit is prescribed by the ‘Tin in Food Regulations 1992’ and has been supported by the independent experts of the Committee on Toxicity.

But when a can is opened and the inside of the can comes into contact with oxygen in the air, corrosion, which is minimal while a can is sealed, occurs more rapidly. This results in more tin being released into the food. The Agency’s advice not to store food in open tin can does not apply to foods sold in cans with re-sealable lids, such as golden syrup and cocoa. Such cans are suitable to contain foods after they have been opened because the food itself is not corrosive.

The Agency regularly monitors the levels of tin in canned food. This is because it is known that high concentrations of tin in food can irritate the gastrointestinal tract and may cause short-term stomach upsets in some people.

Answer 2

Most of the answers you are agetting are only partially correct. Foods packed in cans and sold in the United States must meet governmental standards fo processing and canning. Modern cans are produced with a plastic liner, very similar to the plastic container others have suggested using, which prevents the contents from coming in contact with the metal body of the can. Old canning systems did not use the modern liners and contamination was a big problem. One problem still exists however, can openers. The older type which cuts open the lid can allow metal particles to fall into the contents and some of the contents may get onto the cutting and gear mechanism. The newer type opener cuts the outer rim of the can and never touches the contents, eliminating the problems. Foods can be stored safely in open cans if sealed properly. However, most people prefer to store canned items in clear containers fo ease of use and identification. Bon apitite!

Answer 3

During the canning process the tin is steralized. After it has been opened it is a breading ground for bacteria. The tin actually is the perfect place for bacteria to grow.

Believe it or not just placing the beans in a plastic or class container - lid or not -will cause less bacteria to grow or at least not as quickly. This also will help to avoid the metallic taste that can transfer to items left for more then one day open and in the original can.

Answer 4

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Answer 5

After the tin is opened, the oxygen from the air and the acid from the foods start oxidizing the in. Actually tin cans are made from steel with a tin covering.

Answer 6

i think of we've carried various "previous wive's thoughts" from cases previous into our modern line of questioning. In different words, what would have been authentic decrease back in our grandmothers' cases isn't authentic anymore. this could be a style of issues. there replaced right into a time -- no longer too some time past -- whilst tin cans the two contained a small quantity of lead in the alloy, and have been sealed with lead solder. Leaving nutrition in a can (even whilst it wasn't open) for long classes of time replaced into no longer fairly useful because of the fact the lead would slowly be leached into the nutrition. there replaced right into a widely used attempt at crossing the northern ice fields to locate a passage that thank you to Asia or everywhere they have been attempting to circulate. The deliver have been given iced in and the team had to proceed to exist on the canned products that they had on board. maximum of them died of exposure, yet people who lived long adequate to attempt to be rescued have been laid low with lead poisoning earlier they succombed to the chilly. at the instant you could desire to no longer get lead solder everywhere close to a can of nutrition. And canning supplies have replaced lots besides, including the certainty that maximum modern cans have a lining of a few style that save the nutrition break away the steel. i haven't completed so very many times, yet I incredibly have thrown a can into the refrigerator with some nutrition left in it. I observe an off style after an afternoon or so. i do no longer understand if it incredibly is basically the refigerator funk or some style of reaction between the can, the nutrition and the air. in case you do no longer recommendations the style (or do no longer observe it) and don't have plastic storage bins, then i think a refrigerated can of corn can't kill you.

Answer 7

Although tin cans are safe for food storage due to the spraying of laquer or other coatings to inhibit "leaching" of metals into the food, when oxidation occurrs this leaching can take place.

I do not eat alot of canned goods as they are prime candidates for heavy metal toxicity. The body has an extremely hard time of elimination of these substances.

Also an open container as opposed to a airtight sealed one has a greater potential for bacterial growth such as salmonila.

Answer 8

I believe it is the zinc that is now found in cans-years ago, you could leave them in a tin, but that is not the case now.

Answer 9

Storing Food In Tin Cans

Answer 10

because i don't want to get sick or die. after the seal is broken the raw metal can interact with the cans contents.