For about two years we accepted wax-coated produce boxes as part of our recycling stream. Starting in January 2026 we do not. This is a short note on why, because we have had four customers ask in the last month.
What wax-coated is
A wax-coated corrugated box has a layer of paraffin or polyethylene wax impregnated into the corrugate medium. The wax makes the box wet-strength resistant, which is why you find it everywhere in the produce supply chain — chilled greens, melons, broccoli, anything that meets ice or condensation. Without the wax the box would collapse in transit.
Why it is not standard recyclable
Most paper mills will not accept wax-coated corrugate in their standard repulping streams. The wax does not separate cleanly in the pulping process. It contaminates the fiber, gums up the screens, and lowers the yield of useful pulp. A mill that accidentally takes in a high enough percentage of wax-coated material will down-grade an entire batch.
There are specialized mills that can handle wax-coated corrugate. They are not many, they are not close to Oak Creek, and the freight to get a baled load there usually wipes out any value the material carries.
What we used to do
We segregated wax-coated bales, held them, and trucked them quarterly to a partner mill in Indiana that could process the stream. The margins were ugly. The freight was uglier. And the partner mill itself stopped accepting third-party loads of wax-coated material in late 2025.
What we now ask
If your facility generates wax-coated corrugate as a by-product, we are happy to refer you to one of the regional waste-to-energy partners we know. We are also happy to talk about whether your application actually needs wax-coating — sometimes a swap to a polyethylene-lined alternative removes the disposal problem entirely and is cheaper end-to-end.
What we will not do is take wax-coated material into our recycling stream and pretend it has a viable next life. We made the zero-landfill commitment in 2021. The way we keep it is by being honest about the materials we cannot responsibly handle.