USDA FoodKeeper – Cold Storage Guidelines
Official refrigerator, freezer, and pantry timelines maintained by the U.S. Department of Agriculture.
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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
Discard it after the expiration date.


Fridge
35-40°F (1.6-4.4°C)
Refrigerate in a sealed container
3 days
60 days
Unpleasant odor, slimy texture, visible mold
The expiration date on pre-packaged Chicken Chow Mein indicates the point at which the product may no longer be safe to consume due to potential spoilage or bacterial growth. Consuming expired food can pose health risks. On the other hand, the 'best quality by' date refers to the period during which the dish is at its peak flavor and texture. While it may still be safe to consume after this date if stored properly, the quality may degrade over time, affecting taste and overall enjoyment of the meal.
To determine if Chicken Chow Mein has gone bad, check for any mold growth, off smells like a sour or rotten odor, and a slimy or unusual texture. If you notice any of these signs, it's best to discard the dish to avoid potential foodborne illness.
Chicken Chow Mein, being a ready-to-eat meal, is susceptible to foodborne illnesses if not handled and stored properly. The main risk comes from the chicken and vegetables in the dish, which can harbor harmful bacteria like Salmonella and E. coli if not cooked to the appropriate temperature or if left at room temperature for too long. It is crucial to cook Chicken Chow Mein thoroughly, ensuring the chicken reaches an internal temperature of 165°F (74°C) to kill any bacteria present. Leftovers should be promptly refrigerated within 2 hours of cooking to prevent bacterial growth.
To maintain the quality and safety of Chicken Chow Mein, store leftovers in an airtight container in the refrigerator for up to 3-4 days. Consider separating the noodles from the sauce and proteins to prevent sogginess. When reheating, add a splash of water or broth to revive the noodles and prevent them from drying out. Avoid reheating the dish multiple times, as this can increase the risk of bacterial contamination. For longer storage, Chicken Chow Mein can be frozen for up to 2-3 months. Thaw frozen portions in the refrigerator overnight before reheating thoroughly.
Chicken Chow Mein is a popular dish in Chinese cuisine that has gained popularity in Western countries as well. Originating from Cantonese cuisine, Chow Mein is made with stir-fried noodles, vegetables, and protein, typically chicken. The name 'Chow Mein' translates to 'stir-fried noodles' in Cantonese. In Chinese culture, noodles symbolize longevity and are often served during special occasions like birthdays and Lunar New Year. The dish's versatility allows for various regional and personal adaptations, making it a beloved comfort food worldwide.
If Chicken Chow Mein has been at room temperature for 2 hours, it's best to discard it to reduce the risk of foodborne illness. Bacteria can multiply rapidly at room temperature, increasing the risk of contamination. To maintain food safety, always refrigerate perishable foods promptly.
Once opened, Chicken Chow Mein should be consumed within 2-3 days if stored in the refrigerator. Ensure it's tightly sealed in an airtight container to maintain freshness. Discard any leftovers beyond the recommended timeframe to avoid potential food safety risks.
The type of container can impact the shelf life of Chicken Chow Mein. Opt for airtight containers to extend its freshness. Avoid storing it in cans or containers with rust or dents, as these can compromise the integrity of the food. Proper packaging can help maintain quality and prevent contamination.
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.