I live in New Haven and saw on our handy recycling flyer [0] that pizza boxes are listed, with no caveat, as being a single stream curbside recyclable item. Which is great, because pizza is a whole thing in this town. We eat a lot of it. So I was surprised to learn, if you go poking around and find the RecycleCT website [1] and hover your mouse over the pizza box, up pops this note. "No food residue. No liner." Never…
You might find that greasy, unlaminated cardboard is recyclable in the food/organic waste stream, as it is here in London.