Expiration Of Product

This is a very important function for those who sell products which have an expiration date, like some foodstuffs, and very important if the user of the system is a pharmacy, since here is not only the problem of expiration, but also the possibility of sale of some medically expired and that this affects the health of the buyer.
It would be very good to have an attribute in the product, it can be established whether or not it has expiration, and if it is affirmative to be able to indicate its expiration date
Also in the reports have a specific where you can see what are the products to beat.