how can you tell if an egg has gone bad?

Answer 1

when in doubt throw it out!

Answer 2

There is a small air pocket in the large end of the egg. When the egg is fresh, the pocket is only about 1/8th of an inch deep and as large around as a dime. As the egg ages, however, it loses both moisture and carbon dioxide — shrinking — so that the size of the air space increases. And the size of the air space determines the buoyancy of the egg.

So if you submerge a very fresh egg in water, it will lie on the bottom. An egg that is a week or so old will lie on the bottom but bob slightly. An egg that is three weeks or so old will balance on its small end, with the large end reaching for the sky. And a bad egg will float.

Answer 3

There are two well-known "tricks" that don't work all that well. One is putting the eggs in water; if they sink to the bottom, ok, if they float to the top, bad. This test is OK if the eggs are really grossly bad, but the eggs may be bad and they still sink. Another method, called candeling, involves shining a light through the egg. If it looks dark, it's bad. The best method, however, is to break it open. If the egg white is anything but a clear, colorless liquid, throw it out. It may not smell bad, but it's started to turn.

Answer 4

The others have answered this question correctly...placed in water a bad egg will float.
HOWEVER

The worst way is to crack a bad egg onto a hot griddle. If it is bad you will exit the kitchen and house very rapidly as the smell is among the worst!

Answer 5

Put the eggs in a bowl of water. If they float ,they are bad. If they stay on the bottom they are good.

Answer 6

To know if an egg is bad, just put in into some water(not boiling) and see if it floats or sink, If it sinks it's good, but if it floats it is bad.

Answer 7

rotatate egg it will rotate more times than a fresh egg.

Answer 8

put in a cup of water to see whether it sink

Answer 9

because it smell badly

Answer 10

break it and smell it... use your nose!!! you can use your tongue too...;