USDA FoodKeeper – Cold Storage Guidelines
Official refrigerator, freezer, and pantry timelines maintained by the U.S. Department of Agriculture.
Visit USDA FoodKeeperStorage conditions, initial freshness, and proper handling change the answer — and those details are easy to miss.
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Last reviewed: January 2026
Reviewed by the Can I Eat Expired Editorial Team using official USDA, FDA, and CDC food safety guidance. How we assess food safety risk
This food is often safe when handled and stored properly, but safety depends on how it's been kept and whether any spoilage signs are present.
⏱️ Safe for up to 365 days after expiry if properly stored and showing no spoilage signs.


Pantry
Room temperature
Keep in a tightly sealed jar
Spices lose flavor and potency when exposed to air and moisture. Keeping them sealed in an airtight spice container (Amazon) helps preserve flavor and prevent clumping.
730 days
Loss of red color, stale aroma
Use in Middle Eastern dishes and marinades
Lemon zest, vinegar powder
While sumac does not necessarily have a strict expiration date, it is best used within a year of purchase for optimal flavor and potency. Over time, the essential oils in sumac can degrade, leading to a loss of flavor and aroma. To ensure the best quality, store sumac in an airtight container away from heat and light.
To determine if sumac has gone bad, check for any signs of mold growth, discoloration, or a rancid smell. Fresh sumac should have a vibrant red color, a tangy citrus aroma, and a slightly coarse texture. If the sumac appears dull, has a musty odor, or feels soft and moist, it is best to discard it to avoid any potential risks.
Sumac is generally safe to consume and does not pose significant foodborne illness risks. However, it is important to ensure that the sumac you are using is not contaminated with mold or other contaminants. If the sumac has an off smell, appearance, or taste, it should be discarded to prevent any potential foodborne illnesses.
To prolong the shelf life of sumac and maintain its flavor, store it in a cool, dark place away from moisture. Consider transferring it to a glass jar with a tight-sealing lid to protect it from air and light exposure. Avoid storing sumac near heat sources such as the stove or oven, as heat can degrade its flavor. Additionally, it is recommended to buy sumac in small quantities that can be used within a reasonable timeframe to ensure freshness.
Sumac is a red spice derived from the berries of the sumac plant. It is commonly used in Middle Eastern, Mediterranean, and North African cuisines to add a tangy, citrusy flavor to dishes. Sumac has been used for centuries in traditional medicine for its anti-inflammatory and antioxidant properties. In some cultures, sumac is also used as a dye for textiles and leather.
Once opened, Sumac can typically be used for up to 1 year if stored in a cool, dry place away from heat and sunlight. To maintain its flavor potency, consider transferring it to an airtight container.
Sumac is safe to consume even if stored at room temperature; however, its flavor and potency may degrade faster than if stored in a cool, dark place. Check for any changes in aroma, color, or texture before using it.
The type of container can impact the shelf life of Sumac. Opt for airtight containers to prevent moisture and light exposure, which can degrade the quality of Sumac over time. Glass jars or metal tins are good choices for storage.
Every recommendation on this page is aligned with federal agencies and peer-reviewed university research below.
Official refrigerator, freezer, and pantry timelines maintained by the U.S. Department of Agriculture.
Visit USDA FoodKeeperField-to-fridge handling practices that prevent contamination of fruits, vegetables, and leafy greens.
Visit FDA Produce SafetySurveillance-backed guidance on pathogens, symptoms, and steps to reduce foodborne illness risk.
Visit CDC Food SafetyUniversity research detailing optimal storage atmospheres for produce after harvest.
Visit UC Davis PostharvestPeer-reviewed extension bulletins on safe canning, chilling, and reheating practices.
Visit Penn State ExtensionNeed deeper reading? Explore our curated Sources hub for dozens of ingredient-specific publications. Our food safety review methodology explains how safety determinations are made.
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Important: These are general guidelines based on authoritative sources listed above. Always use your best judgment and when in doubt, throw it out. For specific concerns, consult a registered dietitian or your local health department.
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