Is it safe to leave a propane tank attached to the grill?
Quick answer
It is generally safe to leave a propane tank attached to a grill that is outdoors, off, and valve-closed at the tank when not in use — but turn the tank valve off after cooking for an extra layer of safety. Disconnect for long-term storage, transport, or if the grill is moved under cover indoors.
Best practice after each cook
- Turn burners off at the grill knobs.
- Close the tank valve at the cylinder.
- Check for hissing or smell before walking away.
When to disconnect
- Storing the grill for weeks or months
- Moving the grill or tank in a vehicle
- Replacing hose or regulator
- Any suspected leak