Fire sprinkler systems are triggered by extreme heat and can quickly extinguish a fire in the room where it started. You've probably seen a number of movies where a small amount of smoke triggers all of the sprinklers in a building, soaking everyone and everything inside.
How Long Coconut Milk Lasts. Coconut milk should be used within a week to ten days after being opened. While you can still drink it after ten days, it wonât be nearly as fresh as it was within the first week after opening. If you purchase a container of coconut milk and do not open it, abide by the expiration date that is printed on the container.
The printed expiration date on milk is really just a sell by date, and milk is usually still good for a few days after that. Milk should last up to 7 days past the sell-by date if properly refrigerated.