Just sent a shout out to my east coast relatives to see if they can still get it.
Good find! Geeze, the interweb is costing me lots lately!
Mike, Just for fun why don't you take one of those crackers and wet it and just see if anything will grow from it?
Now we will never know how many years it would have remained stable in that original packaging....
Salt is also bread preservative so my guess is your bread is loaded with it. Plus this bread has 'aged' through winter, doubt you will get that much shelf life in summer
There has been recent news about our (U.S.) expiration dates on foods. Many feel we throw out food way before it is expired including milk, eggs, medicines etc. I always eat eggs past their date, milk I sniff before I throw it our, leftovers good for at least a week, often 10 days. Whiskey only gets better.