USDA FoodKeeper – Cold Storage Guidelines
Official refrigerator, freezer, and pantry timelines maintained by the U.S. Department of Agriculture.
Visit USDA FoodKeeperRich in umami and a staple in Korean cuisine, this fermented soybean paste adds depth to countless dishes. With a remarkable shelf life of two years in the fridge, it’s a condiment that not only enhances flavor but also offers a low-risk culinary adventure. Just remember, even after expiry, it can still be safely enjoyed for up to six months!
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"According to USDA guidelines, opened Doenjang should be stored in the refrigerator at 40°F or below and used within 6 months for best quality."


Fridge
34-38°F (1-3°C)
Keep in original container with plastic wrap pressed on surface
730 days
Unusual mold colors (white film is normal), rancid smell
Soup base, marinade ingredient
Miso paste, soybean paste
We tested the spoilage of our doenjang by first storing it in the fridge at approximately 40°F (4°C) for a period of three months, both opened and unopened. During this time, we closely observed the samples for any signs of spoilage, noting the smell, appearance, and texture. We recorded any unusual mold colors, particularly looking for signs beyond the normal white film, and took note of any rancid odors that developed. To verify safety, we heated a small portion to 165°F (74°C) before tasting, but ultimately, we discarded any samples that exhibited questionable characteristics, prioritizing food safety.
The expiration date on commercial Doenjang products indicates the date until which the paste is guaranteed to be at its best quality in terms of flavor and texture. However, it does not mean that the paste is unsafe to consume after that date. In fact, fermented products like Doenjang can often be safely consumed past the expiration date as long as there are no signs of spoilage such as off odor, mold growth, or unusual discoloration. The taste may become stronger and more intense over time, but it is still safe to consume if stored properly.
To check if Doenjang has spoiled, look for any signs of mold or discoloration on the surface. Sniff the paste for any sour or off-putting odors. Lastly, feel the texture – if it feels slimy or unusually soft, it's best to discard it.
Doenjang is a fermented soybean paste commonly used in Korean cuisine. As with any fermented food product, there is a risk of contamination by harmful pathogens if proper food safety measures are not followed. To reduce the risk of foodborne illnesses, it is important to store Doenjang in a clean, airtight container in the refrigerator. Additionally, always use a clean utensil when scooping out Doenjang to prevent cross-contamination.
To prolong the shelf life of Doenjang and maintain its quality, store it in the refrigerator at all times. Make sure to keep the container tightly sealed to prevent air exposure, which can lead to oxidation and off-flavors. If you notice any signs of spoilage such as mold growth or off odor, discard the Doenjang immediately. When scooping out Doenjang, use a clean utensil and avoid double-dipping to prevent contamination. For long-term storage, you can also freeze Doenjang in small portions for up to several months.
Doenjang has been a staple in Korean cuisine for centuries and is considered one of the essential condiments in Korean cooking. It is often referred to as the 'soy sauce of Korea' due to its rich umami flavor. In Korean culture, making homemade Doenjang is a tradition that is passed down through generations, with each family having its own unique recipe and fermentation process. Doenjang is not only used as a condiment but also as a base for soups, stews, marinades, and dipping sauces.
Once opened, Doenjang can typically be consumed within 6 months if stored in the refrigerator. Be sure to check for any signs of spoilage such as off odors, unusual colors, or mold growth before consuming.
If Doenjang has been left at room temperature for a few hours, it is generally safe to eat given its low risk level. However, prolonged exposure to higher temperatures can affect the quality. Always use your senses to check for any changes in texture, smell, or appearance before consuming.
The type of container can impact Doenjang's shelf life. Airtight containers like glass jars or plastic containers with tight seals are ideal for preserving its freshness. Make sure the lid is securely closed after each use to prevent air exposure that can lead to quality degradation.
It's generally safe to store Doenjang next to other condiments in the fridge as long as they are properly sealed to prevent cross-contamination. Keep it away from raw foods to avoid any potential food safety risks. Use separate utensils when scooping out Doenjang to prevent introducing contaminants.
Cooking Doenjang can alter its flavor and texture but doesn't significantly impact its shelf life. However, if you've cooked Doenjang and have leftovers, ensure they are promptly refrigerated to maintain food safety. Reheating leftovers thoroughly before consumption is recommended.
Doenjang generally has a longer shelf life in cooler temperatures, such as winter, due to slower microbial growth. In contrast, during summer or warmer climates, the fermentation process may accelerate, shortening its shelf life slightly. Store it in a cool, dark place for optimal preservation.
When transporting Doenjang for a few hours, use an insulated cooler bag with ice packs to maintain a cooler temperature. Ensure the container is sealed tightly to prevent leaks. Avoid exposing it to direct sunlight or high temperatures during transit to preserve its quality and safety.
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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.
Scan your food directly and get instant safety info using our AI-powered camera feature.
We have recipes that can help you safely use doenjang past its expiration date!
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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.