●How to pick eggs - Hold the eggs in your hand, shake them gently so that the eggs hit each other, and listen carefully to the sound. High-quality fresh eggs make a crisp sound when they are knocked against each other, but there is no sound when you hold the eggs in your hand and shake them.

●The wonderful use of eggshells - wash and break the eggshells, put them in an iron pot and fry them over a slow fire until they turn yellow (do not burn them), then grind them into powder, the finer the better. Take the amount of one egg shell a day, 2-3 times with water before or after meals. It has analgesic and antacid effects on patients with duodenal ulcer, stomach pain, and hyperacidity

< p>●Storage Tips——Everyone knows that the eggs you buy must be stored in the refrigerator. But when placing it, it should be placed with the big end up and the small end down. I’m afraid you don’t know this, right? This will not only prevent microorganisms from invading the egg yolk, but also help ensure the quality of the eggs.

How to identify fresh eggs? When eating hot pot, some people are used to adding eggs to the hot pot to cook together, and some people use them to make Shacha sauce. But in any case, the key point is an egg. If the egg is fresh, it will taste delicious. If it is not fresh, if it is serious, you will need to go to the emergency room.

Introducing two methods of identification:

1. Look at the appearance of the egg to see if there are any protrusions. The more protrusions, the fresher they will be. On the contrary, if The smoother the exterior, the stale it will be.

2. Soak the egg in cold water. If the egg: A lies flat, it is very fresh. B is leaning in the water. This egg has been lying for 3 to 5 days. C Standing upright in the water, the egg is 10 days old. D floats on the water. The egg has gone bad.

I wish your whole family good health

How to identify good and bad eggs when buying them

Put the eggs in a basin filled with water. If the eggs sink in the water, They are fresh eggs. Eggs that float are bad. This is because fresh eggs have a higher specific gravity than water, so they will sink when placed in water. When an egg is broken, the protein inside it will produce gases such as ammonia and hydrogen sulfide. If there are gases in the eggshell, the specific gravity of the egg will be smaller than that of water, so it will float when placed in water

These six You must not eat eggs

When it comes to the nutrition of eggs, it can be said that we have talked about it for a long time. How to choose fresh eggs and how to eat eggs to be more nutritious, everyone already knows, but do you know which eggs cannot be eaten? ?

Cracked eggs:

During the transportation, storage and packaging of eggs, due to vibration, extrusion and other reasons, some eggs will cause cracks and cracks, which are easily infected by bacteria. It is intrusive and should not be eaten if left for a long time.

Sticky shell eggs:

Due to the long storage time, the yolk membrane of this kind of eggs has become weak from toughness, and the yolk is close to the egg shell. If it is partially red, it can still be eaten, but the egg If the membrane is close to the eggshell and does not move, if the outside of the skin is dark black and has a peculiar smell, it should not be eaten.

Rotten eggs:

Due to the invasion of bacteria into the eggs, they multiply, resulting in deterioration, the eggshells are dark gray, and even the eggshells are ruptured due to the expansion of the hydrogen sulfide gas inside the eggs, and the eggs inside If the mixture is gray-green or dark yellow and has a foul smell, the egg cannot be eaten, otherwise it will cause bacterial food poisoning.

Loose yolk eggs:

Due to violent vibrations such as transportation, the yolk membrane ruptures, causing mechanical loose yolk; or the eggs are stored for too long, and bacteria or mold invade the eggs through the pores of the eggshell. In the body, the protein structure is destroyed, resulting in loose yellow and thin and turbid egg liquid. If the yellowing is not severe and there is no peculiar smell, it can still be eaten after high-temperature treatment such as boiling. However, if bacteria multiply in the egg and the protein has been denatured, it cannot be eaten if there is a smell.

Stillborn eggs:

Eggs that are contaminated by bacteria or parasites during the incubation process, coupled with poor temperature and humidity conditions, cause the embryo to stop developing are called stillborn eggs. . The nutrients contained in such eggs have changed. If they die for a long time, the protein will be decomposed and a variety of toxic substances will be produced, so they should not be eaten.

Moldy eggs:

When some eggs are exposed to rain or moisture, the protective film on the surface of the eggshell will be washed away, allowing bacteria to invade the inner surface of the egg and cause mold and deterioration, causing the eggshell to become moldy and rotten. If there are black spots and mold, these eggs should not be purchased and eaten.

In addition, there are also diarrhea yolk eggs, blood tendon eggs, etc. which generally should not be purchased and eaten.

A healthy life comes from a healthy diet. Let’s keep in mind the healthy way to eat eggs! Stop eating fried eggs and fried eggs from roadside vendors. Those eggs may be cheap eggs that have gone bad!

Beware of three major misunderstandings when buying eggs

■Eggshell color has nothing to do with nutrition

Eggshell colors include white, light brown, brown, dark brown and cyan. point. Some people prefer red-shell eggs, while others prefer green-shell eggs because they think they have higher nutritional value. In fact, the nutritional value of eggs is not necessarily related to the color of the eggshell.

As far as the nutritional value of eggs is concerned, its level mainly depends on the nutritional structure of the feed and the feeding status of the chicken, and has little to do with the color of the eggshell. Generally, the shell color is the darkest in the early stages of egg laying, and then gradually becomes lighter. Hens with high egg production have lighter eggshell colors. The shade of eggshell color can be changed through selective breeding. Therefore, the color of the eggshell cannot be used to judge whether the eggs are made of wood or whether the nutritional value is high.

■Small eggs are not all farm eggs

Egg weight is greatly affected by genetic factors. Chickens of different breeds and strains produce different egg weights; physiological stages also affect egg weight. , nutritional factors and feed management also have a certain impact on egg weight. In the past, chicken eggs were smaller in weight, but not all chicken eggs were small in weight. The development of modern technology has allowed people to breed chicken breeds with different egg sizes according to needs.

■"Red eggs" may be caused by pigments

When buying eggs, many people always like to buy "chai eggs" and think that golden yellow or reddish-brown egg yolks are Chai. egg. In fact, this judgment standard is not scientific. In the past, the yolks of eggs were light yellow in winter and turned golden yellow in summer. But now the season no longer plays a role in the color of the yolks.

In order to make laying hens produce more eggs, they must be fed with feed. The yolk of ordinary eggs is light yellow. In order to make the eggs "red", pigments must be added to the feed. For this reason, the eggs we spend more money to buy are likely to have added pigments. Therefore, the color of egg yolk cannot be used as a criterion to determine whether it is a "challenged egg".

Therefore, you should be targeted when purchasing eggs. You don’t need to think too much about the color of the yolk and eggshell; but whether the color of the eggshell is uniform (the color is usually said to be positive), whether the eggshell is smooth, Pay attention to indicators such as the shape of the egg not being too long or too round. If the color of the eggshell is uneven or the eggshell is rough, it is possible that the egg was laid by an unhealthy chicken. (Reporter Yan Zheng)

Experts teach you how to buy eggs

2003-04-03

After the Spring Festival, farms and farmers in various places raise eggs in cages Free-range and free-range poultry have entered the peak egg-laying season again, and a steady stream of eggs is flowing into the city, providing citizens with more choices. In markets or supermarkets, people are accustomed to refer to the large brown-shelled eggs produced by large-scale caged laying hens in chicken farms as "foreign eggs", while the pink-shelled or brown-shelled eggs produced by free-range chickens raised in rural households are called "foreign eggs". Eggs with smaller shells and sizes are called "local eggs". The former sells for about 2 yuan to 2.2 yuan per 500 grams, while the latter costs more than 4.5 yuan. In terms of quantity, a slightly larger egg costs only one. 4 Jiao, 8 Jiao to 5 Jiao, smaller ones are also above 4 Jiao. As for those rich eggs, green shell eggs, white shell eggs, etc. that are well packaged and have trademark symbols printed on the eggs, the most expensive ones cost more than 7 yuan per 500 grams.

So, why are the prices of eggs so different? What issues should you pay attention to when purchasing? The reporter recently visited relevant people and nutrition experts in the agriculture, animal husbandry, and food departments and learned some little-known information.

At present, most of the "foreign eggs" on the market come from large or small laying hen farms operated by rural collectives and individual operators. The breeder chickens are generally provided by large state-owned or joint-stock companies. ", "Haissex Brown", "Hyland Brown". If managed properly and fed properly, each kilogram of eggs consumes 2.2 to 2.5 kilograms of feed, and each chicken produces an average of 15 to 18 kilograms of eggs per year. The chicken farm can still make money. This kind of "foreign eggs" are purely converted from feed, and the nutrition is naturally not comparable to the "local eggs" produced by farmers' free-range chickens. Moreover, due to intensive breeding, in order to prevent and control chicken plague, farm owners often add some flavomycin, olaquinal, oxytetracycline or "Quick Treatment - 100 Compound Antibiotics" to the feed at regular intervals. These drugs will inevitably There will be some residues in the eggs. If it exceeds food safety standards, long-term consumption will definitely be harmful to people's health.

Since the Ministry of Agriculture implemented the "Pollution-free Food Action Plan" in July last year, various localities have strengthened food safety publicity and education. However, the supervision of feedlots has lagged behind. The market access system for eggs has not yet been implemented. The safety status of commercial eggs has led to People worry. Experts suggest that when consumers purchase "foreign eggs", they must check whether there is quality certification, especially "pollution-free food certification." So far, the only "foreign eggs" that have passed the provincial "pollution-free certification" are products from the Shuijiahu Mechanized Chicken Farm of the provincial agricultural reclamation system, Hefei Zhengwang Livestock and Poultry Company, and Guangde County Rongda Poultry Company. In addition, the "foreign eggs" produced by Hefei Zhengda Company, jointly established by Thailand's Chia Tai Group and Anhui Feed Factory ***, have also been inspected by relevant departments and confirmed to have "no drug residues" and can be eaten with confidence.

Are the "local eggs" produced by farmers' pasture-raised chickens necessarily safe and reliable? Not really. The reporter saw several grass chickens raised by farmers on the side of the "He-Chao-Wu" road. It was a high fence made of thin bamboo poles, enclosing an open space the size of a basketball court. Hundreds of grass chickens were on the fence. They peck at the rice, wheat bran mixed with vegetables, etc. fed by their owners. Experts believe that the problem is that some farmers like to dry rice and wheat on asphalt roads. The harvested grain is often mixed with heavy metals and carcinogenic chemicals such as lead, cadmium, arsenic, and carcinogenic chemicals. Since there is no way out in the market, they use it to feed chickens and ducks. This kind of "local eggs" is not as safe as ordinary "foreign eggs".

There is now a kind of "local egg" produced by "foreign chicken", which is highly recommended. During an interview in Huoshan County, the reporter found that the county's Tianyuan Agriculture and Animal Husbandry Co., Ltd. selects "foreign chickens" with high egg production rates, and provides a large number of hatching chicks to farmers in mountain villages with no pollution and a good environment. They grow them in Geyuan, taro fields, They are scattered on the hillside and mainly eat wild vegetables, weeds and insects. They are fed an appropriate proportion of grains and no antibiotics are used at all except for vaccines for epidemic prevention. At present, this kind of "local eggs" that have been certified as pollution-free at the provincial level are selling very well in major supermarkets. 500 grams sell for about 5 yuan, and citizens are enthusiastic about buying them.

There is also a so-called "foreign egg" produced by "local chicken", which is a pink-shelled egg recently launched by chicken farms. It is small in size and looks very much like that produced by grass-fed chickens. It is sold in 500 grams. The price is more than 3 yuan. This is just the result of some chicken farms raising a large number of "Laihang Chicken" hybrid laying hens in cages to cater to the tastes of the public. Due to the high selling price, the breeding farms are more particular about the proportion of feed and try to avoid the use of antibiotics. The safety and nutritional value are indeed higher than ordinary "foreign eggs".

The most expensive item currently on the market is the "gift egg", which is the "foreign egg" produced by the authentic "foreign chicken" in Shanxi Province - a white "Goodman egg" that can be used both raw and cooked. "Eggs retail for more than 7 yuan per 500 grams, and are sold in baskets of 3,000 grams and 4,000 grams. According to experts, this is the preferred American "Hyline White" chicken breed, which is raised in rural areas where the environment is not polluted. High-tech biotechnology is used to replace antibiotics and other drugs for disease prevention and treatment, and a variety of trace elements are added to the feed. Vitamins, amino acids and effective biota, the cholesterol of eggs is 70% lower than that of grass-fed eggs, and the protein and lecithin content are several to more than ten times that of grass-fed eggs. It has passed the national "green" certification. Unfortunately, due to the long distance and high selling price, the eggs in many baskets are no longer fresh. When purchasing, citizens must read the production date marked on the basket.

How to identify native eggs

I spent New Year's Day in the countryside of Deqing. In the past few days, because I was preparing to test-market Deqing native eggs, I did some research on cage chickens (that is, chickens fed with feed). ) are different from eggs laid by free-range chickens (raised at home without feeding feed) in the following points:

1. The eggs in the shed are larger, about 8-9 per pound ( This is not absolute, there will be photos posted in the future); the eggs are smaller, about 10-11 per pound (the first-born eggs are even smaller, comparable to pigeon eggs, haha) (because of the breed of shed chickens They are hybrid chickens, which grow meat quickly, are generally larger in size, and lay larger eggs, while free-range chickens eat grains + grains, and grow meat more slowly, and the chicken breeds do not look like hybrid chickens.)

2. When the Guanpeng eggs and original eggs are knocked in bowls respectively, it can be seen that the Guanpeng eggs have smaller yolks, more protein, and a flatter yolk shape; the original eggs have larger yolks, less protein, and plumper yolk shapes. Spherical.

The egg whites of the original eggs are clearer, while the egg whites of the shed eggs are more mixed (in comparison)

3. When cooking the shed eggs and the original eggs into boiled eggs, cut them in the middle and turn the shed eggs into boiled eggs. The egg yolk is small, while the yolk of the original egg is large (this is obvious), and the protein of the Guanpeng egg tastes thicker, while the protein of the original egg is more delicate

For this experiment, I cracked 4 Guanpeng eggs. I boiled 2 closed eggs, cracked 4 local eggs, and boiled 2 local eggs. It should be said that it is somewhat convincing. If you don’t believe it, you can try it (you must compare and try it together, otherwise you can’t tell clearly. As the saying goes, you are not afraid of not knowing the goods, but you are afraid of comparing goods, haha)

In addition, I think about the color of the egg yolk Not too important since it has to do with what the chickens eat.

The eggs in my house are rather golden in color. We feed them rice, millet, bran, vegetable leaves, and yellow turtle bones (my dad goes to the market to get them every day), and today I went to a friend’s house to get them. He bought 10 kilograms of eggs (because I don’t have enough eggs). His chickens are free-range and not fed with feed. He feeds them corn, bran, and vegetable leaves, so the egg yolks are yellowish-red.

In fact, I think that as long as the eggs are raised at home and fed with grains, the eggs they lay are considered traditional eggs. What do you think?