TIL that in 2020, Burger King ran an advertising campaign featuring a picture of a moldy Whopper, to prove that their burgers are made without preservatives. This unconventional advertising method worked, increasing sales by 14% (according to multiple sources.)
That’s just because it’s dried out. Keep it wet and there’s gonna be mold and decomposition. The main preservative at play here is salt. Also used to work at McDonald’s. There was a burger inside of a bag that fell behind the safe that looked pretty normal even though when I found it it was like 10 years old. Was still crazy but I wasn’t surprised though for this reason