Weekly food sorting helps avoid many health problems, such as stomach pains or food poisoning cases, as well as providing more space in the refrigerator.
A report by the American magazine "Reader's Digest" explains that determining which foods need to be disposed of is not easy, as it's not just about bad smells, mold appearance, or even expiration dates.
Expiration dates are not an exact science.
According to Donald Schaffner, a professor of food microbiology at Rutgers University, there is a big difference between the microorganisms that cause mold, bad smells, and bad taste, and those that cause diseases which might not be visible.
Author's summary: Improper food storage can lead to poisoning.