How Long Is Open Milk Good For?

Open milk is generally good for 4-7 days past its printed date, provided it has been refrigerated properly.

Factors Affecting Milk Shelf Life

While the general guideline for open milk is 4-7 days, several factors can impact how long it stays fresh:

• Refrigeration: Milk should always be stored in the refrigerator at a temperature of 40°F (4°C) or below.
• Original Date: The "use by" or "sell by" date on the carton is crucial; milk is likely to spoil sooner if this date has already passed when opened.
• Storage Conditions: Keeping the milk in the door of the refrigerator where temperatures fluctuate more can shorten its shelf life. It is best stored in the main body of the refrigerator.
• Contamination: If the milk container is left open or handled improperly, this can speed up spoilage due to bacteria growth.

Signs of Spoiled Milk

It's essential to recognize signs of spoilage before consuming milk, even within the recommended 4-7 days. Here are some telltale indicators:

• Smell: Spoiled milk often has a sour, unpleasant odor.
• Appearance: It might look curdled, lumpy, or have a thick texture.
• Taste: The taste will be noticeably sour, and it may have an off or unusual flavor.

Tips for Extending Milk's Freshness

To maximize the life of your open milk, consider these best practices:

• Refrigerate Immediately: Store milk in the fridge right after opening and using it.
• Use a Clean Container: Always use clean cups or containers to pour milk from the carton to prevent bacteria transfer.
• Seal Properly: Keep the milk container tightly closed, ensuring no air can get in.
• Don't Freeze: Freezing milk can alter its texture and flavor.

Summary of Open Milk Shelf Life

Always check the milk for signs of spoilage before drinking. When in doubt, it's always safer to discard it.