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5 Ways to Tell if an Egg is Fresh or Rotten
Eggs are a staple in most households, and knowing whether an egg is fresh or spoiled is crucial for both food safety and quality. The good news is, there are several simple methods to determine the freshness of your eggs, so you don’t have to rely on guessing or expiration dates alone. Whether you’re baking, cooking, or making a quick breakfast, here are five easy ways to tell if an egg is fresh or rotten.
1. The Water Test (Float Test)
One of the easiest and most reliable ways to check the freshness of an egg is by performing the water test. Eggs naturally have a protective coating and moisture barrier, but as they age, the egg’s interior shrinks, causing the air cell inside the shell to grow larger. This air cell makes the egg more buoyant over time.
How to do it:
- Fill a bowl with cold water.
- Gently place the egg in the water.
- Fresh egg: Sinks to the bottom and lays flat on its side.
- Slightly older egg: Sinks but stands upright at the bottom.
- Rotten egg: Floats to the surface.
Why it works: Fresh eggs have less air inside and are denser, making them sink. As eggs age, the air cell grows, making them more buoyant. If the egg floats, it’s a sign that it’s old and potentially spoiled.
2. The Sniff Test
While the water test can be an excellent indicator, the sniff test is another simple and effective method. It’s often considered the most foolproof way to check if an egg has gone bad.
How to do it:
- Crack the egg open into a bowl (ideally, do this over the sink or a surface you can easily clean).
- Give it a quick sniff.
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