- How long does an unopened package of graham crackers last? The precise answer depends to a large extent on storage conditions -to maximize the shelf life of graham crackers, store in a cool, dry area.
Properly stored, an unopened package of graham crackers will generally stay at best quality for about 6 to 9 months.
Are unopened graham crackers safe to use after the "expiration" date on the package? Yes, provided they are properly stored and the package is undamaged - commercially packaged graham crackers will typically carry a " Best By," "Best if Used By," "Best Before", or "Best When Used By" date but this is not a safety date, it is the manufacturer's estimate of how long the graham crackers will remain at peak quality.
Storage time shown is for best quality only - after that, the graham crackers' texture, color or flavor may change, but in most cases, they will still be safe to consume if they have been stored properly, the package is undamaged, and there are no signs of spoilage (see below).
How can you tell if graham crackers are bad or spoiled? The best way is to smell and look at the graham crackers: if graham crackers develop an off odor, flavor or appearance, or if mold appears, they should be discarded.
Sources: For details about data sources used for food storage information, please click here