system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5 what is the difference between dry-aged meat and rotten meat?
gpt
Rotten meat has been partially eaten by bacteria whose excrements are poisonous to humans.

Bacteria need a certain environment to survive; if meat is salted, smoked or dried, bacteria have a hard time surviving on and in it, and thus the meat keeps safe for human consumption for a longer time.