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Over time, even pantry staples that seem long-lasting can spoil, losing their flavor, texture, and nutritional value. While many packaged goods come with extended shelf lives, they don’t last forever.

Some foods can go bad much sooner than you’d expect, even if their expiration dates suggest otherwise. Here are 15 common pantry staples that may have already gone bad and why they spoil quicker than expected.

1. Cooking Oils

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Cooking oils can become rancid when exposed to air, light, or heat, leading to unpleasant smells. Keep oils in a cool, dark place, tightly sealed, to maintain their quality.

2. Spices

Dried spices in glass jars
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Over time, ground spices lose their potency, resulting in weaker flavors. If your spices no longer smell fragrant or taste strong, it’s time to replace them. Whole spices, however, last longer—up to 2 to 3 years when stored in airtight containers away from heat and sunlight.

3. Flour

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Flour easily absorbs moisture, which can lead to a rancid odor and even bacterial growth. To keep it fresh, store it in a sealed container in a cool, dry location.

4. Sugar

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Although sugar doesn’t spoil, it can harden or clump if exposed to moisture. Store sugar in a cool, dry environment, and ensure it’s kept in an airtight container to prevent it from absorbing odors from other foods.

5. Honey

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Honey has an indefinite shelf life when stored properly. However, moisture can cause it to ferment, which alters its texture and flavor. Keep honey in a tightly sealed container away from humidity.

6. Seeds and Nuts

Pecan nuts on a wooden table.
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Nuts and seeds contain oils that oxidize quickly when exposed to heat or light, making them taste bitter. Store nuts and seeds in a cool, dry place or refrigerate them to prolong freshness.

7. Rice

Thai Jasmine rice seed in wooden bowl with spoon
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Though rice can last for years, it is susceptible to moisture, heat, or pest contamination. Brown rice spoils faster than white due to its higher oil content. For longer shelf life, store rice in airtight containers and consider freezing it.

8. Pasta

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Dried pasta doesn’t spoil quickly but can lose its texture and flavor over time. If you notice mold or an unusual smell, discard it. Keep pasta in its original packaging or airtight containers away from heat and moisture.

9. Baking Soda and Baking Powder

Baking soda in jar and spoon.
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Baking soda and baking powder can lose effectiveness over time. Test baking soda with vinegar, and baking powder with hot water—if they fizz, they’re still good. Otherwise, replace them to ensure your baked goods rise properly.

10. Canned Goods

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While canned foods are designed to last, their contents can deteriorate over time. Keep cans in a cool, dark place, and check them regularly for signs of bulging or rust.

11. Dried Beans

Multicolored beans poured from jars on the table. White, red, colored and black beans
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Dried beans can become tough and take longer to cook if they’ve been stored too long. Beans that remain hard after cooking for hours should be discarded. Store dried beans in airtight containers in a cool, dry area.

12. Oats

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Oats can go stale and develop a musty odor when exposed to heat and moisture. Store them in a cool, dry place to maintain their freshness.

13. Nut Butter

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Natural nut butter spoil faster than commercial varieties because they lack preservatives. A rancid smell or separation of oil and solids are signs they’ve gone bad. Store nut butter in the fridge to extend its life.

14. Cornmeal

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Cornmeal can go rancid if stored in warm or humid conditions. If it smells sour or tastes bitter, it’s time to toss it.

15. Snacks

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Chips and crackers may become stale as they absorb moisture, even if they’re still safe to eat. If they’ve lost their crispness or developed an odd smell, throwing them out is best.

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