USDA FoodKeeper – Cold Storage Guidelines
Official refrigerator, freezer, and pantry timelines maintained by the U.S. Department of Agriculture.
Visit USDA FoodKeeperStorage temperature, how long it has been opened, and package integrity 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
May be safe if properly stored and showing no spoilage signs. Check carefully before consuming.
⏱️ Safe for up to 2 days after expiry if properly stored and showing no spoilage signs.
⚠️ Eating spoiled dairy is one of the most common causes of food poisoning at home.


Fridge
Between 32°F - 40°F (0°C - 4°C)
Keep in original packaging, submerged in water, change water daily
Dairy products require consistent cold storage (40°F or below) to prevent spoilage. A refrigerator thermometer (Amazon) helps ensure your refrigerator maintains safe temperatures.
5 days
Slimy texture, sour smell, mold growth
Transferring opened dairy into an airtight container (Amazon) can reduce odor absorption and moisture exposure.
Blend into smoothies, crumble into salads, use in stir-fries
Tempeh, seitan
Over time, opened refrigerated tofu may lose its texture, develop off flavors, and become slimy or discolored. While it may still be safe to eat for a short period beyond the expiration date if properly stored, the quality deteriorates. It's recommended to consume tofu by the 'best by' date for optimal taste and texture.
When checking if opened refrigerated tofu has gone bad, look for any signs of mold, discoloration, or an off smell. Fresh tofu should have a neutral smell and a smooth, slightly firm texture. If the tofu appears slimy, has a sour smell, or feels mushy, it is likely spoiled and should be discarded.
Opened Refrigerated Tofu may pose a risk of contamination with bacteria such as Listeria monocytogenes or Salmonella if not stored properly. To prevent foodborne illnesses, always refrigerate tofu at or below 40°F (4°C), consume it within 3-5 days of opening, and avoid cross-contamination with raw meat or poultry.
To extend the shelf life of opened refrigerated tofu, store it in a container filled with fresh water and change the water daily to maintain freshness. For added flavor, marinate tofu in soy sauce, spices, or citrus juices before cooking. Tofu can also be frozen for up to 3 months, but the texture may change upon thawing.
Tofu, also known as bean curd, has been a staple in Asian cuisine for over 2,000 years. Originating in China, tofu is made by coagulating soy milk and pressing the curds into blocks. It is a versatile ingredient used in both savory and sweet dishes worldwide. In some cultures, tofu is considered a symbol of longevity and prosperity.
Opened Refrigerated Tofu can be safely consumed within 5 days after opening if stored properly in the fridge. Beyond this period, it's advisable to discard it even if it shows no visible signs of spoilage.
If Opened Refrigerated Tofu has been at room temperature for a few hours, it should be consumed within 2 hours to maintain food safety. If left out longer, especially in warmer temperatures, the risk of bacterial growth increases, and it's safer to discard it.
The type of container can impact the shelf life of Opened Refrigerated Tofu. Airtight containers help maintain freshness and prevent absorption of odors from the fridge, extending the tofu's quality. Transparent containers also allow easy monitoring for any signs of spoilage.
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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