system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why do I have to take the lids off plastic bottles before putting them in the recycling? They lids are made of plastic too, right?
gpt
The lids are to be recycled as well. They don't want bottles capped because it makes them more difficult to compact. Also, stronger plastic bottles can present a significant explosion hazard under compression.