Dog food types
How should I store wet dog food after opening?
Last updated 23 September 2026 · How we write and check this
Short answer
Once opened, transfer any unused wet food to an airtight container or cover the can tightly with a lid made for that purpose, refrigerate immediately, and use it within 2 to 3 days, discarding anything left in the original can uncovered or left out at room temperature for more than an hour or two.
Why covering and refrigeration matter so much
Wet food's high moisture content makes it a much faster environment for bacterial growth than dry food once exposed to air, so both prompt refrigeration and a proper airtight cover are needed to slow that growth as much as possible.
The role of a can lid or container
A dedicated silicone can lid or transferring the remaining food into a small airtight container both work well, and either is considerably more effective at maintaining freshness than simply folding foil over the open can, which does not seal tightly enough.
Serving from the fridge safely
When serving a refrigerated portion, take out only what is needed for that meal rather than leaving the whole opened container out while your dog eats, and return the rest to the fridge promptly.
Key takeaways
- Cover opened wet food tightly and refrigerate immediately rather than leaving it in an unsealed can.
- A proper airtight lid or container works better than loosely covering with foil.
- Use opened wet food within 2 to 3 days and only portion out what is needed at each meal.