I actually don't remember how I came across this info but I somehow ended up on Real Simple's website on an article about product expiration dates.
They have compiled a list of 77 items with expiration dates that may surprise you.
Some of the ones that I found useful were:
Brown sugar: Indefinite shelf life, stored in a moistureproof container in a cool, dry place.
Frozen vegetables: Unopened: 18 to 24 months
Opened: 1 month
Juice, bottled (apple or cranberry): Unopened: 8 months from production date
Opened: 7 to 10 days
Peanut butter, natural: 9 months
Peanut butter, processed (Jif): Unopened: 2 years
Opened: 6 months; refrigerate after 3 months
Salad dressing, bottled: Unopened: 12 months after "best by" date
Opened: 9 months refrigerated
Batteries, alkaline: 7 years
Fire extinguisher, rechargeable: Service or replace every 6 years
Fire extinguisher, nonrechargeable: 12 years
Paint: Unopened: Up to 10 years
Opened: 2 to 5 years
There are many, many more listed which may be helpful at the Real Simple website!
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