The rule of thumb is that the higher the alcohol percentage, the longer it will last both opened and unopened, provided the bottles are kept cool and out of the sun. Unopened, 80 proof spirits kept in this manner will stay drinkable for a lifetime. Once they're opened, they are good for about 5-10 years.
After they're opened, no more than 3 yrs., and that's pushing it. If you haven't opened them yet, nearly forever.
No, but once you open it, you have about a year.
Indefinitely.
Yes, DNA does have a shelf life. It has a shelf life of about four years if it is properly preserved.
Whar is the shelf life of the " Idioms "
The shelf life of Chloramphenicol when it is unopened is 24 months. The shelf life when it's opened is 28 days.
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The shelf life of unopened petroleum jelly is around 3 years.
when its empty !
it has a shelf life of 9 months