An ideal choice for a dog food storage container is a sturdy, airtight, bug-proof container that is easy to clean and large enough for an entire bag of kibble.
Screw top lid designs help prevent access to small children and dogs while keeping food fresh. Indented handles on larger models are helpful for moving in and out of your storage area when refilling. Some styles have spouts that allow food to "pour" out.
Ensure this mechanism is sturdy and allows the kibble size of the food you use to flow freely. Some also have plugs that allow a good seal to occur between uses.