How to Tell If Eggs Are Bad
One way to tell if eggs are bad is to perform a float test by placing them in a bowl of water. If they float, they are bad; if they sink, they are still good to eat. Another way is to crack the egg open and smell it. If it has a strong sulfuric or rotten odor, it is likely spoiled.
Unsure if the eggs you have are still good? There are several methods for checking. Learn about the “packing date” as well as the best ways to store eggs.
Most foods will give you a clear indication when they are past their prime with a particular fragrance or appearance. What about eggs, though? It’s difficult to know anything about one by simply looking at it or smelling it, especially if the shell is intact. So how can you identify rotten eggs? Should you discard them if in doubt? None yet! Here are a few methods to determine whether your eggs are still good to eat before you head to the compost bin.
Check the Packing Date, Not the Expiration or Sell-by Dates
Not the expiration or sell-by dates, but the packing date is the most trustworthy date on your egg carton. The sell-by date is a technique used by retailers to determine how long a product should remain on the shelf, while the expiration date provides a broad indication of how fresh your eggs are. Neither will give you a precise age estimate for your eggs.
On the other hand, the packing date indicates the precise day your eggs were placed in the carton. Because it is often displayed using the Julian date calendar, which counts the days of the year starting with 1 for January 1 and ending with 365 for December 31, it might be challenging to spot. Search for a three-digit code close to the “use-by,” “sell-by,” or “expiration” dates to determine the packing date. According to United Egg Producers, eggs should be safe to eat within four to five weeks of the pack date and two to three weeks after the expiration date. The Institute of Agriculture and Natural Resources at the University of Nebraska-Lincoln advises eating your eggs three to five weeks after the day you bought them if you’re not into understanding dates and codes on cartons.
Do a Float Test
A float test would be the best option if you don’t want to bother looking up and calculating the Julian date (or doing the arithmetic). Because eggshells are permeable and air may easily pass through them, the older the egg, the more air there is inside. The egg will eventually have enough air inside it to allow it to float once enough time has passed.
Fill a bowl or cup with water to perform a float test (it should be big enough to fully submerge your egg). Check to see if your egg floats or sinks by carefully placing it inside. It’s old and you should probably throw it away if it floats. However, the Food Safety and Inspection Agency of the USDA claims that an aged egg “may be completely risk-free to use. Before choosing whether to use or discard the egg, crack it into a basin and look at it to check for an odd smell or sight. You can smell rotten eggs when you crack open their shells, whether they are cooked or uncooked.”