Sustainability · July 15, 2023 · 11 min read

The truth about "100% recycled content" claims on packaging

Almost every corrugated box on a US shelf carries some version of a 'made from recycled content' label. The labels are mostly true and almost entirely useless. Here is why.

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Written by L. Park, Sustainability

Walk into any grocery store and squint at the bottom of a cardboard shipping box. You will almost always see a small circle with arrows around it and a percentage — 35%, 65%, sometimes a confident 100% — that purports to tell you what fraction of the fiber in the box came from recycled material. These claims are largely accurate but they obscure a much more important question: what happens to the box when you are done with it?

Recycled content vs. recyclability vs. reuse.

There are three different things people mean when they say a box is 'eco-friendly,' and the difference matters a lot. Recycled content is what fraction of the fiber in this specific box came from a previous box. Recyclability is whether this box can become fiber for the next box. Reuse is whether this box can avoid the recycling step entirely and stay in service as a box for another trip. They are listed in increasing order of climate value: reuse is dramatically better than recycling, which is in turn somewhat better than virgin fiber.

Why the supply chain only talks about #1.

Recycled content is the easiest of the three to put on a label, because it is locked in at the time the box is made. Recyclability depends on the customer's behavior. Reuse depends on a whole reverse-logistics infrastructure that almost nobody has set up. So labels concentrate on the metric that is easy to measure and ignore the metrics that actually matter.

A worked example.

Imagine two boxes. Box A is 100% recycled content and goes in the dumpster after one trip. Box B is 0% recycled content (pure virgin fiber) and gets reused six times before being recycled. Box B has roughly a quarter of the lifecycle footprint of Box A, despite the worse-looking label, because it amortizes its production cost across six trips instead of one.

How to read packaging claims like a skeptic.

  • Ignore the recycled-content percentage as a proxy for environmental virtue.
  • Ask how many trips the box is expected to make in normal operation.
  • Ask whether the seller takes the box back for reuse.
  • Ask what the diversion rate is at the customer end of the chain.
  • If none of those questions have answers, the eco label is mostly marketing.

What we wish labels said.

A box label that actually moved the needle would say: "This box has been used three times, has approximately three more trips of structural life, and will be picked up by your supplier when you are finished with it." We are not holding our breath for that label to become standard, but it is the future every reuse-focused supplier is trying to nudge toward.


The Truth About Recycled Content Claims on Packaging — Denver Eco Boxes