It is good for about a day.
Then it will get really nasty if its in the summer. In the winter it might go for a little longer.
Chardonnay is good for about 7 years unopened.
Unopened milk is typically good for about one week past the expiration date printed on the carton.
Nothing can stay good if it never was.
for about a week
Read the label. It will tell you how long it will last. However, you can keep an unopened jar of jam for years and it will still be good.
Unopened sour cream is typically good for about 1-2 weeks past the expiration date printed on the container.
Sadly, not long, especially if it's Amontillado, they're only good for like a month. Medium Dry sherries should be good for about a year.
Potentially centuries if it is good quality originally.
An unopened bottle of Pennsylvania Dutch egg nog will be good for up to seven months. This variety of egg nog contains alcohol.
Yes, hard liquor lasts for a really long time unopened.
It was last for decades if unopened.
Soup is perishable. However, if it is canned and unopened, it will be good for a very long time.