Plastic recycling facts and myths

Few topics generate as much confident misinformation as plastic recycling. On one side, some claims overstate how much progress has been made; on the other, a wave of "recycling doesn't work" narratives has taken hold in recent years, often based on outdated data or a misunderstanding of how modern sorting technology operates. The truth, as usual, sits between the extremes – and understanding it matters, because public confidence in recycling directly affects participation rates and policy decisions.

Myth: "All plastic put in the recycling bin gets recycled"

This is false, but not for the reason most people assume. Once collected, plastic waste goes through a sorting process that separates it by polymer type, colour and form. Items that are too contaminated, too small, made of non-recyclable composite materials, or simply not what the local programme accepts will be rejected at this stage and sent to energy recovery or landfill. The proportion that gets rejected varies enormously between facilities – and this is precisely where investment in modern optical sorting technology makes the biggest difference, by reducing rejection rates and increasing the volume of material that is successfully recovered.

Myth: "Recycling doesn't really work, so it doesn't matter"

This narrative often points to historically low recycling rates for certain plastic types, particularly flexible films and certain food packaging, as evidence that the entire system is broken. But low recycling rates for specific, historically hard-to-process materials do not mean recycling as a whole "doesn't work" – they highlight where investment and technological improvement are most needed. PET bottles, for example, are recycled at high rates in many countries precisely because the sorting and reprocessing infrastructure for PET is mature. The lesson is not "stop recycling" but "extend that same level of infrastructure to the materials that currently lack it".

Fact: most plastic worldwide is still not recycled

Despite decades of recycling programmes, the global share of plastic waste that gets recycled remains low – the vast majority is still landfilled, incinerated, or leaks into the environment. This is not because plastic is inherently unrecyclable, but because the infrastructure to sort it accurately at scale has lagged far behind the volume of plastic produced and discarded each year.

Fact: sorting technology is the bottleneck – and the opportunity

The single biggest factor determining whether a given plastic item actually gets recycled is whether the sorting facility it passes through can correctly identify and separate it. This is precisely the gap that optical sorting technology closes. Multispectral and near-infrared sensors can distinguish between PET, HDPE, PP, PS and other polymers at high speed, even when items are dirty, printed, or oddly shaped – categories of material that older, manual or purely mechanical sorting methods could never reliably separate.

At PICVISA, our ECOPACK and ECOFLAKE systems are designed precisely to close this gap, recovering plastic fractions that would otherwise be lost to rejection streams. The honest answer to "does plastic recycling work?" is: it works as well as the sorting technology behind it allows – and that technology has improved dramatically in the last decade, with much more still to come.

See how ECOPACK improves plastic recovery