They should have an expiration date printed on each package. That is usually about two years unless they were exposed to excessive heat. If you're not sure you should buy a new one; the risk is much higher then the cost.
Checks are typically valid for six months before they expire.
Chocolate chips are typically good for about 1-2 years before they expire, as long as they are stored in a cool, dry place.
Bread crumbs typically last for about 6 months before they expire.
Kegs are typically good for about 6-8 weeks before they expire, depending on the type of beer and how it is stored.
Krispy Kreme donuts are typically good for about 1-2 days before they expire.
Rice Krispies are typically good for about 6-8 months before they expire, as long as they are stored in a cool, dry place and the packaging is unopened.
Kegs typically stay good for about 6-8 weeks before they expire, depending on the type of beer and how it is stored.
HelloFresh meals are typically good for about 5-7 days before they expire, depending on the specific ingredients and recipes.
Dried herbs are generally good for about 1-3 years before they expire, depending on the type of herb and how they are stored.
CO2 cartridges typically have a shelf life of 3-5 years before they expire.
Cooked noodles can typically be stored in the fridge for 3-5 days before they expire.
Tea bags are generally good for about 6-12 months before they expire, but it can vary depending on the type of tea and how it is stored.