I heard about what the dates mean recently. I found this information on the Consumer Affairs Web site.

Ferrick

"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. "


> > >
> > > > Hey! Beef jerky has an expiration date. Who knew?
> > > >
> > > > When I was at the grocery store this weekend, I picked up some vinegar. It had an expiration date on it. Vinegar goes bad? How can you tell?
> > > >
> > > > -Faux "I'm no Howard" Pas