Ew. If you have to ask...
Seriously, your bottle should have a "best used by" date printed on the label. Olive oil should be stored in a cool, dry place, (i.e. room temperature in a dark pantry is ok.) It can last up to 15 months, under ideal conditions.
Corn oil is different. According to The Food Channel, it should be stored in the refrigerator, for up to 6 months.
Now, in order to test whether your oil has gone bad:
1. smell it. If it smells rancid or mouldy or weird, then chuck it in the bin.
2. no smell? taste it. If it tastes bitter or gross, then chuck it in the bin.
Your question just said, "cooking oil" and did not refer to a specific oil. Best to check the label, or ask your grocer when you buy it. Different oils last different amounts of time before they go bad.
An unopened bottle has an indefinite shelf life.
Forget the date, especially if you do not know how they were stored in the grocery store. (Were the nuts refrigerated?) Open the bag and smell the walnuts. If they smell fresh and slightly nutty, they are fine to eat. If you make a sour face after smelling them, throw them out! Rancid oil has a very distinctive smell, and eating rancid nuts can make you sick.
If well stored, then yes for both of them. Though, "good" maybe more for someone who is used to old wines. As for value, you should get around 100 $ for it.
Cooking oil should be stored in a cool, dark place away from heat and light to maintain its quality and freshness. It should be sealed tightly to prevent exposure to air, which can cause it to go rancid. Additionally, avoid storing it near strong-smelling foods as it can absorb odors.
Unopened sour cream can last for about 2-3 weeks past the sell-by date if stored properly in the refrigerator.
Sadly, yes. If you have an unopened bottle from a great vintage stored under ideal conditions, the bottle can last 40 years. Those are rare circumstances though. The average bottle owned by the average person probably only has a shelf life of 10 years.
Oil that has changed in consistency or smell over time has been deemed as rancid or oxidized. This oil should be discarded and shouldn't be consumed.
Of course
Unopened CO2 cartridges can last indefinitely if stored properly in a cool, dry place.
Oh, what a delightful question! An unopened bottle of Bacardi Mojito Classic can last for a very long time, my friend. As long as it's stored in a cool, dark place away from direct sunlight and extreme temperatures, it can last indefinitely. Just imagine the refreshing sip you'll enjoy when you finally decide to open it - what a happy little treat that will be!
It cannot be stored for more than a week as it is just fermented milk product. So be careful when you consume when stored for long time... :-) Sunny
Yes, tea can expire if unopened and stored properly, as it can lose its flavor and aroma over time. It is recommended to consume tea within 1-2 years for the best quality.