2007-02-04 00:16:36 · 12 answers · asked by BABY YASMIN BORN 24TH FEB 09 4 in Food & Drink ➔ Other - Food & Drink
Did you know you can test an egg and get an approximatation of its age? All you need are the eggs and a bowl of cold water.
Gently drop the egg into the bowl of water. If it:
sinks to the bottom and stays there, it is about three to six days old.
Sinks, but floats at an angle, it's more than a week old.
Sinks, but then stands on end, it's about two weeks old.
Floats, it's too old and should be discarded.
For a test just to see if the eggs are all right to use, dissolve 2 tablespoons salt in 2 cups cold water, then put the egg in the water. If it sinks, it's good; if it floats, it's too old.
Eggs act this way in water because of the air sac present in all eggs. As the egg ages, the air sac gets larger because the egg shell is a semi-permeable membrane. The air sac, when large enough, makes the egg float. Eggs are generally good for about three weeks after you buy them.
And how do you see if an egg is hard cooked? Spin it on a flat surface. If the egg wobbles, it's fresh because the insides are moving around. If the egg spins smoothly, it's cooked.
2007-02-04 08:38:27 · answer #1 · answered by LMnandez 3 · 1⤊ 0⤋
Because of the conflicting answers here, I've checked with an expert... 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.
2016-03-29 04:18:20 · answer #2 · answered by ? 4 · 0⤊ 0⤋
a good egg will completely sink, a bad egg will sink but will have one end pointing up, this is because the bacteria that make an egg bad also destroy the egg matter, so you will have an air bubble in one end, resulting in it trying to float.
2007-02-04 00:25:39 · answer #3 · answered by Anonymous · 0⤊ 0⤋
Egg shells are porous and air can enter. The older the egg the more air will enter and the larger the air bubble at the round end of the egg will become making it float.
2007-02-04 00:31:32 · answer #4 · answered by Anonymous · 1⤊ 0⤋
If they are put in cold water they will float if they are off. There is a build up of gas inside the egg once it goes off. I have once eaten an addled egg, to pacify a mentally ill hostess who thought it would be okay. Yeuuggh! Even she had to admit there might be something wrong with it!
2007-02-04 00:26:11 · answer #5 · answered by zakiit 7 · 1⤊ 0⤋
I've had this little clippimg taped to the inside of my cupboard for years that I clipped from a food magizine. A fresh egg will sink.
2007-02-04 06:44:40 · answer #6 · answered by Classy Granny 7 · 0⤊ 0⤋
Old eggs will float, I throw them out ,they will make you sick
2007-02-04 15:50:40 · answer #7 · answered by Gumbo 6 · 0⤊ 0⤋
they float...f u pout them in water and they are standing up that means that they are not good any more..u can use them to make cakes...but not for omlette....if they are floating they are really really bad....or old......do not consume floating eggs
2007-02-04 00:30:08 · answer #8 · answered by flaming red 2 · 0⤊ 0⤋
they float in cold water
2007-02-04 01:29:02 · answer #9 · answered by lildeb1258 3 · 0⤊ 0⤋
fresh eggs will float.
bad ones, will sink
2007-02-04 00:24:12 · answer #10 · answered by rinoao 3 · 0⤊ 2⤋