You will need
- - electronic scales;
- - glassware;
- - plate.
To determine the freshness of the egg you will need an electronic scale. Fresh quail egg heavy, has a mass of twelve grams . The old one even feels very light , as if empty if put such egg on accurate scales, the mass will show four to six grams.
Take a deep glass bowl and fill it with water. Gently lower the quail egg, if it is fresher - immediately sink to the bottom and turn on its side. As it dries, the egg loses its freshness, and the amount of air begins to increase and accumulates in the region of the pointed end of the egg.
If you lower the egg in a container of water, it will lie with its sharp end to the bottom, the dull side will point to the surface. Such a product is still usable, it is a week old.
If the quail eggs floated a little or stayed on the surface of the water, throw them away, they are clearly damaged. This method is suitable only for eggs without cracks and other damage.
Break the quail egg on a flat horizontal surface. The protein of a fresh egg will remain near the yolk and will not spread much, while the yolk will retain its compact and rounded shape. In a spoiled or less fresh egg, protein and yolk spread on the surface of the dish, losing its viscosity. Refuse to use such eggs, otherwise poisoning cannot be avoided.