Eggs are the nutrients we need to supplement every day. When we go to the supermarket, we always buy a lot of them and eat them slowly at home. So whether the eggs are fresh or not determines the date of taking them home for preservation. Of course, we all need to choose fresh and high-quality eggs. So how to choose fresh and high-quality eggs? Here are a few tips.
[identification tool]
Basin, searchlight, water.
Eye, ear, nose, hand, etc.
[identification method]
Sensory identification: the eggshell of fresh egg is rough with a layer of frost like powder; The shell of old egg is smooth and bright; The eggshell which was drenched or damp and moldy had gray black spots; The shell of stinky eggs is black, and some of them have oil stains.
Hand identification: turn the egg on the palm of your hand, the shell of good quality fresh egg will be rough and the weight is appropriate; If it is inferior eggs, hand weigh light, hand feel smooth.
Nose smell identification: smell the smell with your nose, take a sip of hot gas on the eggshell with your mouth, and then smell the smell with your nose. Good quality fresh eggs have a slight smell of quicklime.
Ear hearing identification: put the egg between the two fingers and shake it in the ear. The fresh egg sounds solid and sticks to the eggshell without shaking. This is a fresh egg. If you pinch several eggs with your hand and gently touch each other, if it is a poor quality fresh egg, the egg and egg collide with each other, making a rattle (hatching egg) and an empty sound (watery egg). When you shake the egg with your hand, it is a sloshing sound.
Floating identification: the egg immersed in cold water, if it lies flat in the water, that is very fresh; If it is tilted in water, it has been stored for at least 3-5 days; If it stands upright in the water, it may have been stored for about 10 days; If it floats on the water, the egg is likely to have gone bad.
Light identification: you can use the searchlight to shine on the egg, under the sun or in the light, you look at the egg to the light, if the light transmittance of the egg is very good, the color is transparent under the light is a good egg.
Naked eye identification: open the egg and put it in the bowl. If the yolk is full and the protein is fresh and sticky, then it is a fresh egg. If it seems that there is a lot of water, the yolk is very loose, and the whole egg yolk is loose, then this kind of egg is not new.
Odor identification: excessive poor quality egg shell has oil stains, and smell the eggshell will have odor. Open the egg shell and put it into the bowl completely in the form of water, and the egg yolk seems turbid together. You can obviously smell the irritating odor or odor, and even blackening.
The value of eggs is very high, but in the selection of eggs is to be particularly careful, do not eat broken eggs, otherwise it will lead to a lot of diseases.