Como testar se seus ovos estão frescos?

Eggs are high in protein and rich in nutrients. The most commonly used food in the cooking process, whether eggs need to be cleaned, is a concern of many people. Unwashed eggs can have many hazards.

Regulamentações locais para ovos

Many countries have clear regulations. The U.S. government stipulates that eggs sold in supermarkets must be washed; eggs are sold under refrigeration to extend the "fresh period" of eggs. This kind of regulation exists in many countries and has become a trend. Therefore, it is necessary to purchase an egg washing machine to operate the egg industry, as well as other supporting equipment, egg grader, and egg inkjet printers.

Como testar se um ovo está fresco?

Type one： The bigger the spread and the more irregular the edges, the more stale the egg will be. Normally, there will be a thin film between the egg yolk and the egg white, which is called "yolk film" professionally. As the storage time becomes longer, the elasticity of the egg yolk film will become smaller and smaller, or even rupture.

And the egg yolk will melt together. The more intuitive result is that when an egg is knocked open, the yolk will spread out immediately, there is no feeling of being "wrapped", and it is very casual.

Type two: Look at the size of the air chamber, the larger the air chamber, the less fresh the eggs will be. Where is the air chamber? When peeling eggs, you often see a dent on the side of the big end of the egg, right? That is the "air chamber" of the egg. From the moment the egg is born, its weight begins to change, generally becoming lighter and lighter.

This is because there are pores in the eggshell, which will allow the moisture in the egg to evaporate continuously, and the weight of the egg will gradually decrease. Yes, the egg baby is still a breathing egg after leaving the mother chicken's body! But the longer it breathes, the less water it has and the less fresh it becomes.

A câmara de ar de um ovo recém-posto não ultrapassa 3 mm. Se a câmara de ar do seu ovo for significativamente maior que isso, a frescura será menor. Claro, a temperatura e a umidade de armazenamento inadequadas acelerarão a perda de peso dos ovos.

Como armazenar ovos corretamente?

Ovos são facilmente contaminados por várias substâncias, como podemos preservar os ovos corretamente para que possamos comê-los com segurança?

1. Não congele

O congelamento altera a proteína, fazendo com que a gema solidifique e possivelmente rache a casca.

2. Não misture

Existem muitas bactérias patogênicas e sujeira na casca dos ovos armazenados. Não os compre e coloque diretamente na geladeira, pois isso causará infecção cruzada com outros alimentos.

3. Don't put it sideways

Ao colocar um ovo, preste atenção à extremidade grande, ou seja, a extremidade com a câmara de ar, o que pode prolongar o tempo de armazenamento e evitar que a gema fique amarelada quando estiver perto da casca do ovo.

Finally, it is important to note that eggs cannot be stored indefinitely. Generally speaking, eggs stored for 1 to 2 weeks are no problem to eat, and the longest should not exceed 1 month. Otherwise, not only will the nutrients be lost in large quantities, but they will also become "bad eggs".