Information Details

Five tricks to teach you to quickly identify fresh eggs

Release time:

2019-08-06

eggs are very easy to go bad, how to buy fresh eggs is extremely important. Chen Jilan, a researcher from the Poultry Research Office of Beijing Institute of Animal Husbandry and Veterinary Medicine, Chinese Academy of Agricultural Sciences, introduced the three-step method of egg selection:

A look:

fresh eggshell is rough and accompanied by a layer of frost-like powder, with bright and clean color. The eggshell of the old egg is relatively smooth, the shell of the rotten egg is black, and there are oil stains on the shell.

2 Listen:

Hold the egg with your fingers and shake it gently in your ear. The sound of good eggs is solid. There is a whisky sound of shell eggs and rotten eggs. Empty eggs have hollow sounds; Crack eggs have a "pop" sound.

three photos:

holding eggs with both hands is like a tube, facing the sunlight or light perspective, good eggs are reddish, translucent, and the yolk outline is clear.

Four turns:

Place the egg on a flat surface and turn it gently with your fingers. When the fresh egg turns, there is resistance in the egg shell and it stops after turning for two or three weeks. Bad eggs turn long and fast. If the egg does not turn fast or slow, it proves that it is not fresh enough.

Five Drift:

Put eggs in about 15% salt water, and fresh eggs sink to the bottom. The big head is up, the small head is down, and the half-sink and half-float are old eggs. Stinky eggs float on the water.

Feed Research Institute, Chinese Academy of Agricultural Sciences

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Feed Research Institute, Chinese Academy of Agricultural Sciences

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