You can tell when eggs are bad by using several simple methods involving sight, smell, and a water test: 1. Visual Inspection

• Check the eggshell for cracks, sliminess, or a powdery coating, which can indicate bacterial growth or mold. If the shell looks dry and intact, crack the egg onto a clean plate and look for any pink or iridescent discoloration in the yolk or whites, which signals spoilage. Also, if the yolk is flat or the whites are very runny, the egg is likely old or bad

2. Sniff Test

• The most reliable method is to smell the egg after cracking it open. A bad egg gives off a strong, sulfurous, or rotten odor. If you detect any off smell, discard the egg immediately

3. Float Test

• Place the egg gently in a bowl of cold water:
  • If it sinks and lies flat on its side, it is fresh.
  • If it sinks but stands upright or tilts, it is older but may still be safe.
  • If it floats, the egg is too old and should be discarded

4. Additional Checks

• Shake the egg gently; if you hear a sloshing sound, it suggests the yolk has deteriorated and the egg may be bad

Safety Tips

• Always wash hands and surfaces after handling eggs.
• Store eggs in the refrigerator and do not leave them out for more than two hours.
• Cook eggs thoroughly until both yolk and white are firm to reduce risk of bacterial contamination

Using these methods together will help you reliably determine if your eggs are still good to eat or if they should be thrown out.