How long food keeps › Baked Goods / Baking and Cooking
How long does flour last?
Flour (white) keeps 6–12 months in the pantry unopened, 6–8 months in the pantry once opened and 1 year in the fridge once opened.
Written with AI help from the sources listed, and published by Cory. Sources: USDA FoodKeeper, USDA on leftovers and food safety, USDA on the danger zone (40-140°F). Spot a mistake? Tell us and we'll fix it.
How long does flour keep in the pantry, fridge and freezer?
White
- Pantry
- 6–12 months unopened
6–8 months opened - Fridge
- 1 year opened
Whole wheat
- Pantry
- 3–6 months
- Fridge
- 6–8 months opened
How do you keep flour safe to eat?
- These times assume the fridge is at 40°F or colder and the freezer at 0°F.
- Freezer times are for best quality. Food kept frozen at 0°F stays safe indefinitely; it just loses flavor and texture over time.
- Perishable food shouldn't sit at room temperature for more than 2 hours (1 hour above 90°F).
- Smell and looks don't tell you about the bacteria that make people sick, so go by the time, not by a sniff test.
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Get started freeHow long do other baking and cooking keep?
- Baking powder
- Baking soda
- Biscuit or pancake mix
- Cake, brownie, bread mixes
- Chocolate
- Cocoa and cocoa mixes
- Cornmeal
- Cornstarch
Which cooking guides go with it?
- Food safety: the danger zoneBetween 40°F and 140°F, bacteria multiply fast, so perishable food shouldn't sit there long.
- Storing and reheating leftovers safelyCooling, storing and reheating cooked food so it stays safe and still tastes good.
- Freezing and freezer burn: what ice does to foodFreezing turns food's water into ice, which pauses spoilage but can damage texture and dry out surfaces as freezer burn.
- Thawing food safelyDefrosting frozen food in a way that keeps it out of the temperature range where bacteria grow.
- Storing produce so it lastsKnowing what goes in the fridge, what stays on the counter, and what to keep apart so fruits and vegetables last longer.
- Blanching vegetables for the freezerBriefly boiling vegetables, chilling them in ice water, and freezing them flat so they keep color and flavor for months.