It really is frustrating. Like we even have resin codes. Little numbers printed that should indicate what kind of plastic it is.
I’m in Seattle. We have a robust recycling system. I still can’t find anywhere what resin code plastics they accept. The website just says “plastic bottles and jugs.”
I pay to use Ridwell. They accept plastic film and, as of recently, “multi-layer plastic.”
The only way to tell these apart is just by judging the plastic for how it feels. Plastic film is stretchier while multi-layer tends to be crinkly? Half the plastic we dispose of does not fall firmly in either camp, so we just do our best.