What is generally true about the storage of eggs before grading?

The storage of eggs before grading is generally required to be done under refrigeration to maintain their freshness and quality. Keeping eggs refrigerated helps to inhibit bacterial growth and preserve their quality, ensuring that they remain safe for consumption. The refrigeration prevents the deterioration of the eggs, which can happen more quickly at higher temperatures.

While eggs can technically be stored at room temperature for short periods in some situations, it is not a standard practice for longer-term storage, especially before the grading process. Stacking eggs on top of each other is also not advisable as it can cause damage to the eggshells and compromise the integrity of the eggs. Freezing eggs is not suitable for storage before grading, as the freezing process can alter the texture and quality of the egg contents. Thus, refrigeration is the most appropriate method for maintaining the safety and quality of eggs before they undergo grading.