As a food safety expert, I can provide you with several indicators to determine if milk has gone bad. Here are some signs to look for:


1. Expiration Date: Always check the expiration date on the carton. If it's past this date, the milk is likely spoiled.

2. Sour Smell: Spoiled milk will often have a sour or unpleasant odor.

3. Curdling: If the milk has separated and you see solid curds or lumps, it's a sign that the milk has spoiled.

4. Color Change: Milk that has turned yellow or has a different color than it should be is likely spoiled.

5. Taste: If the milk tastes sour, bitter, or off in any way, it's spoiled.

6. Mold: If you see any mold on the milk, it's definitely spoiled.

Remember, when in doubt, it's best to throw it out. Consuming spoiled milk can lead to foodborne illnesses.

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The smell of sour milk is overpoweringly wretched. My belief is that if you can stand to smell it, you can stand to drink it. BEST WAY IS: Pour a small amount of milk into a cup of hot water, the milk will rise/float to the top in small, thin clumps if it is bad.read more >>