This site combines information from many sources and contains information on opened / unopened and refrigerated / frozen storage.
Who knew you could keep canned bread for up to three years? Who knew there was canned bread?
http://www.algeri-wong.com/wiki/index.p ... tion_Dates
From the site:
Most people are surprised to find out that:
Stores are not legally required to remove food once the expiration date has passed. They are strictly "advisory" in nature.
Dating is not federally required, except for infant formula and baby food. States have varying laws. Most states require that milk and other perishables be sold before the expiration date.
The major codes are:
Sell by - Don't buy the product after this date. This is the "expiration date."
Best if used by - Flavor or quality is best by this date but the product is still edible thereafter.
Use by - This is the last day that the manufacturer vouches for the product's quality.
Eggs:
Long enough for a month of omelets. Fresh eggs, in their shell, can last in the fridge for 4 to 5 weeks after purchase.
According to Alton Brown:
"An unrefrigerated egg ages a week in a day; keep eggs refrigerated. The rate at which an egg goes downhill has more to do with handling than time. The warmer it is, the faster the membranes that separate the different parts of the egg deteriorate. Properly stashed in their carton in the back of the fridge, eggs will keep an amazingly long time. Grade AA eggs will drop to Grade A eggs in about a week but won't descend to Grade B for about six weeks. After that they're still perfectly edible but I would not do much more than scramble them."