After 48 hr
After 48 hr
On the printed expiration date
They will expire only if you use them. Don't open them until you have to use them.
yes ,1 month after the open date
After you open it, you have about 5 years, provided you keep it cool and out of the sun.
If ammonia is left in an open container (no lid) the ammonia may evaporate faster than the water content. If its in a closed container it should be fine
if its left a room temp un covered yes if its sealed in a fridge its o.k. if its left unopen then im not sure
Full proof alcohol will generally not expire if kept unopened. An exception would be if the bottle is more than about 20 years old. Once the bottle is open it will start to oxidize. You will still have many years to enjoy the wonderful effect of tequila for several years though. Once it starts to taste like cardboard water with no buzz, throw it away. Sommelier Drew
All drugs have an expiration date. It will be printed somewhere on the package. That's the date that the drugs are no longer potent - doesn't matter if you opened the package or not.
Yes, but alcohol has a much lower freezing point than water so it requires a colder temperature to freeze them.
Yes, it is perishable. To ensure the best taste, you should only leave it unopened for 3-4 weeks and if you open it, make sure it is refrigerated and consume the caviar within three days.
Traffic tickets don't expire, they are valid as long as the issuing entity wants to keep track of them. Thirty years seems a long time.