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A fresh egg will have a firm, rounded yolk that sits high, and the egg white will be thick and somewhat cloudy. If the yolk is flat or breaks easily and the egg white is runny, it indicates that the egg is older. The smell of the egg is also a significant indicator of its quality. A fresh egg will not have a strong odor, while a bad egg will emit a sulfur-like smell. If you notice any unpleasant odor when cracking the egg, it is best to discard it. Additionally, the shell's appearance can give you clues about the egg’s freshness. A clean, uncracked shell is a sign of a good egg. If the shell is dirty, cracked, or has any discoloration, it may indicate contamination or spoilage. You can also consider the type of eggs you are buying. Eggs labeled as organic, free-range, or pasture-raised may have different quality indicators compared to conventional eggs. Researching the source of the eggs can help you make an informed decision.