The plastic lids, tops and caps are not accepted by many recycling centers. Why is that?
On one hand, the design of plastic bottles is set before production-whether in cap mould design or raw material selection.
Just like someone says, any plastic can be recycled, but once mixed; the combination is considered as the pollutants rather than resources, so to separate them before processing is necessary.
On the other hand, recycling plastic bottle with caps may post dangers to workers.
During road transportation, if the temperature increases, the tightly closed empty plastic bottle is readily explosive. Thus, that will put the workers in a dangerous situation.
In conclusion, the behavior of removing caps before recycling is a responsible thing. And for some recycling centers, the separated plastics might able to be recycled.