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Other times, the dates are for the purpose of helping grocery stores know when to rotate.
They are not about when the food is unsafe to eat, but about the quality.
Although a canned food stored for a long period may be quite safe to eat, it may have undergone some quality changes which affect its taste, color, etc.
The manufacturer wants you to get the food in the best possible shape, since if you bought a can that was safe, but a little off, you might not buy their product ever again.
The oldest analyzed was a can of roast veal dating from 1823, manufacured by Donkin’s company, which makes it basically as old as any canned food can be.
The veal had quite a history, being a part of the 1824 Artic expedition of Captain Sir Edward Parry, on the HMS Fury.
Some canned items will last a very long time without any recognizable change.
For example, in this paper researchers describe the characteristics of some very old cans of food: a 40 year old can of corn, pickle relish found aboard the sunken U. S Monitor (sunk 1862), and several canned products from the steamboat, Bertrand (sunk 1865).
You will tend to find dates on certain types of canned products.So, the date is there, really, to protect the reputation of the product. Below is an example of a date on the bottom of a can.The date is not past on this particular image and is used as an example of such a date only. Meredith collects data to deliver the best content, services, and personalized digital ads.
We partner with third party advertisers, who may use tracking technologies to collect information about your activity on sites and applications across devices, both on our sites and across the Internet.The family who donated it thought it to contain plum pudding, and had used it for many years as a door-stop!