Per USDA FoodKeeper
On the counterCounter
3 months
cool, dry place
In the fridgeFridge
Not needed
shelf-stable
In the freezerFreezer
Not needed
keeps without freezing
On the counterCounter
3–5 years
cool, dry place
In the fridgeFridge
Not needed
shelf-stable
In the freezerFreezer
Not needed
keeps without freezing
Quick answer
Yes. Powdered milk lasts 3 months in the pantry. After that, or sooner if stored badly, it spoils: watch for the signs below.
How to tell if powdered milk is bad
Smell
Sour or cheesy smell when it should be clean and mild.
Texture
Lumps, curdling or a thick, slimy body.
Colour
Yellowing or a pink, green or grey tinge.
Taste
Sour or bitter at the first sip — stop and discard.
Powdered milk past the expiration date
Unopened
FoodKeeper gives unopened powdered milk 3–5 years in the pantry, counted from the day you buy it. "Best-by" and "sell-by" describe quality and stock rotation, not safety; only infant formula carries a federally required use-by date.
Opened
Once opened, the printed date no longer applies. Count 3 months in the pantry from the day you open it.
How to keep powdered milk fresh longer
- 3 - 5 year timetable based on cool temperatures, dark storage. May spoil as quickly as 3 months in hot temperatures.
- Store on an inside shelf, not the door, at 40°F (4°C) or below.
- Close the container tightly; dairy absorbs fridge odours.
More about powdered milk
FAQ
How long does it take for powdered milk to go bad?
3 months in the pantry, per USDA FoodKeeper.
Can powdered milk expire?
FoodKeeper gives unopened powdered milk 3–5 years in the pantry, counted from the day you buy it. "Best-by" and "sell-by" describe quality and stock rotation, not safety; only infant formula carries a federally required use-by date.
What happens if you eat bad powdered milk?
Usually an unpleasant taste rather than illness, but discard anything mouldy, rancid or smelling off.
How do you keep powdered milk from going bad?
3 - 5 year timetable based on cool temperatures, dark storage. May spoil as quickly as 3 months in hot temperatures.
Numbers on this page come from USDA FoodKeeper and FSIS guidance. Last verified November 2026. How we verify our data · Report a wrong number