Just stumbled across a good article on seriouseats.com about why McDonalds food may not rot. While McFood might be described in many ways and by many as “unnatural”, there is a good and totally natural reason why such McFood has been observed to last just about forever: It turns out that the main factor may be that the McFood dries out, and the thus mummified McFood is resistant to food rot.
Well, well, well. Turns out that not only did the regular McDonald’s burgers not rot, but the home-ground burgers did not rot either. Samples one through five had shrunk a bit (especially the beef patties), but they showed no signs of decomposition. What does this mean?
It means that there’s nothing that strange about a McDonald’s burger not rotting. Any burger of the same shape will act the same way. The real question is, why?
Read the rest of the article Here.