How long does cornmeal last in the refrigerator?

1 year in the refrigerator, after opening, per the USDA FSIS FoodKeeper dataset. Times assume a refrigerator at or below 40 °F (4 °C).

How long does cornmeal last in the pantry?

6 to 12 months in the pantry, counted from the date of purchase, per the USDA FSIS FoodKeeper dataset. Assumes a cool, dry pantry away from light.

How long does cornmeal last after opening?

Once opened — pantry: 2 years; refrigerator: 1 year, per the USDA FSIS FoodKeeper dataset.

How Long Does Cornmeal Last?

Baked Goods · 2 preparations · official USDA FoodKeeper guidance, snapshot 2026-07-24

Type or preparation

Storage method

Cornmeal — regular, degerminated — pantry, from date of purchase

6 to 12 months in the pantry

Cool, dry pantry or cupboard
Applies from date of purchase · regular, degerminated

Stored on

Pick a valid date to calculate the recommended use-by window.

Source: USDA FSIS FoodKeeper (v128, snapshot 2026-07-24) · About this data · Report an issue

FoodStorageCheck — official USDA FoodKeeper guidance · foodstoragecheck.com

All official guidance for cornmeal

Every storage entry the USDA FoodKeeper dataset lists for this food, exactly as published (v128, snapshot 2026-07-24). “No official duration listed” means the source does not provide a number for that combination — not that the food lasts forever.

Cornmeal — regular, degerminated

Where	Condition	Official time
Pantry	from date of purchase	6 to 12 months
Pantry	after opening	2 years
Refrigerator	after opening	1 year

Cornmeal — stone ground or blue

Where	Condition	Official time
Pantry	from date of purchase	1 month
Pantry	after opening	Not recommended
Refrigerator	after opening	2 to 4 months

Common questions about cornmeal

How long does cornmeal last in the refrigerator?: 1 year in the refrigerator, after opening, per the USDA FSIS FoodKeeper dataset. Times assume a refrigerator at or below 40 °F (4 °C).
How long does cornmeal last in the pantry?: 6 to 12 months in the pantry, counted from the date of purchase, per the USDA FSIS FoodKeeper dataset. Assumes a cool, dry pantry away from light.
How long does cornmeal last after opening?: Once opened — pantry: 2 years; refrigerator: 1 year, per the USDA FSIS FoodKeeper dataset.

Two reminders that apply here

Keep the fridge at 40 °F (4 °C) or below.Refrigerator times in this dataset assume a refrigerator held at or below 40 °F. An appliance thermometer is the reliable way to check.

The two-hour rule.Perishable food left at room temperature for more than 2 hours (1 hour above 90 °F / 32 °C) should be discarded, per FoodSafety.gov. Storage windows assume food was refrigerated promptly.