Look for signs like a sour or off odor, visible mold, a slimy texture, or a significantly changed color. If any of these are present, discard the broth immediately.
Detailed Explanation:
Determining if stored broth has spoiled involves using your senses and understanding the potential dangers of consuming contaminated food. Here's a breakdown of what to look for:
- Smell: This is often the first and most reliable indicator. Fresh broth should have a mild, savory aroma. If it smells sour, rancid, or generally 'off,' it's likely spoiled. Trust your nose!
- Appearance: Examine the broth for any visible signs of mold. Mold can appear as fuzzy spots, discoloration, or a film on the surface. Also, check for significant changes in color. If the broth has become unusually dark or murky, it's a warning sign.
- Texture: A slimy or thickened texture is a strong indication of bacterial growth. Fresh broth should be liquid and pour easily. If it feels viscous or sticky, it's best to discard it.
- Taste (Use with Caution): If the broth passes the smell and visual tests, you *could* taste a tiny amount. However, this is risky and not recommended if you have any doubts. A sour or unpleasant taste is a definite sign of spoilage.
- Container Condition: Check the container for bulging or damage. This can indicate gas production from bacterial activity, suggesting spoilage.
Remember, when in doubt, throw it out! Food poisoning is not worth the risk.
Pro Tip:
To extend the shelf life of homemade broth, cool it rapidly after cooking (e.g., in an ice bath) before refrigerating or freezing. This prevents bacteria from multiplying quickly. Also, store broth in airtight containers to minimize contamination.