The quality of plastic in carrier bags is relatively poor compared to pots and tubs. You can put them in with your recycling, but at the moment, we have not been able to find a suitable re-processor to buy them so they will not be recycled. We only sell materials to re-processors who can provide us information about the end destination of the recycling.
The best thing to do with carrier bags is reuse them as much as possible in the first instance, and try to use reusable bags instead. Some supermarkets will recycle carrier bags. Use the Recycle Now locator to search for a carrier bag recycling point near you.