Eggs should be stored in their carton in the coldest part of the refrigerator for up to 5 weeks past the packed date. A blood spot does not indicate a bad egg. For baking, eggs should be brought to room temperature 30 minutes before use. Cold eggs are easier to separate than room temperature eggs. Leftover egg yolks and whites can be refrigerated for a few days. Hard boiled eggs will keep for up to a week in the refrigerator.