Through them the eggs can absorb flavors and odors. That is why we should keep them in their cartons and store them that way. Eggs keep fresh longer in the refrigerator. One day in the fridge would be equal to one week at room temperature. You can tell if an egg is raw or hard cooked by spinning it.
Raw eggs wobble.
Contrary to rumor, you can't tell if an egg is fresh by dropping it in salt water. However, if you spill one on the floor, sprinkling it with salt is the best way to get it up. Fresh shell eggs can be kept refrigerated in their carton for at least 4 - 5 weeks beyond the date they are packed. Hard cooked eggs will last up to one week. Eggs are an economical, nutritious food.