The Recycling Plant Cannot Fix What the Factory Got Wrong

The constraint becomes visible most clearly at the point of collection.

Mattias Wallander, CEO and Co-Founder of USAgain, has watched this play out firsthand: "Declining garment quality is reshaping the economics of collection in a very direct way: quality is what sustains the system. Durable, high-quality items extend their useful life and deliver the biggest life-cycle environmental benefit, and they also generate the resale value that helps pay for collection, transport, sorting, and grading. That value allows collectors to continue collecting the lower-grade fraction that can still be recovered for wiping rags, stuffing, and other secondary uses.

As the share of low-quality, low-value material increases, collectors are the first to feel the strain: higher sorting costs, more contamination, lower resale value, and greater exposure to end-market volatility. We have seen this dynamic play out in Europe, where a similar squeeze has contributed to severe financial stress across the collection and sorting 'middle' of the circular economy—including Soex (Germany) entering insolvency proceedings and Le Relais (France) temporarily suspending collections in mid-2025.

What the system needs is an upstream shift to improve the durability, reusability, and repairability of textiles placed on the market, as well as to develop a market that can handle the fraction that is non-reusable."

It is a diagnosis that locates the problem in the product itself—not in the sorting facility or the recycling plant, but before a garment ever reaches either.

The fast fashion paradox is structural: the business model that generates the volume recovery systems depend on is simultaneously degrading the quality those systems require to remain viable. Collection infrastructure was built on a different material reality. It is now being stress-tested by one it was not designed to absorb.

If declining quality is the first constraint on textile circularity, material complexity is the second—and in some respects the more intractable one.

Post-consumer textiles are not a uniform feedstock. They are the accumulated output of decades of product decisions made with no recovery logic in mind: fibre blends chosen for performance, chemical finishes applied for functionality, constructions engineered for cost. The result, as Eric Joo, Head of Waste Management & Feedstock at Reju, describes it, is a material stream of extraordinary heterogeneity. "Post consumer textiles are very complicated," he says. "We have created mixed textiles that contain various materials with different dyes and chemical finishes that have an estimated billion different combinations. The bottlenecks to processing this feedstock are not just technical, but systemic as well. We need industrial scale processing that can address each part of the circular value chain from collection, sortation, mechanical refining, chemical refining and advanced recycling itself."

The challenge is not simply identifying what a garment is made of—though that alone is formidable—but ensuring that identification translates into consistent, scalable sorting decisions across a geographically dispersed and operationally fragmented collection network. Fibre identification technologies capable of meeting industrial-scale needs exist, but as Joo notes, "the standards required for this industry are not yet fully developed or disseminated." Without those standards, even accurate identification cannot guarantee that sorted materials meet the purity thresholds required by downstream recyclers.

The traceability question compounds this. Lisa Jepsen, President and CEO of Garson & Shaw, is precise about where ambition must be tempered by operational reality: "Ambitions for full item-level traceability across global secondhand markets must be balanced against operational and economic. The reuse ecosystem includes a mix of formal, semi-formal, informal, and small-scale actors. Overly burdensome reporting requirements could inadvertently weaken the very systems delivering high reuse rates.

In the near to medium term, realistic transparency measures include batch-level traceability from collection through primary sorting; standardized reporting of allocation percentages across reuse, recycling, and energy recovery; integration of digital product passports for new textiles entering the market to support future sortability; and harmonized reporting frameworks across EPR schemes.

Transparency should enhance system performance without introducing disproportionate cost. Aggregated, verified reporting can provide policymakers with meaningful oversight while preserving the economic viability of reuse operators.

Strengthening existing reuse systems—rather than unintentionally displacing them—will be central to achieving credible, scalable circular outcomes."

The sorting infrastructure being asked to prepare feedstock for advanced recycling is operating without the standardisation those recyclers require. Material heterogeneity at the input stage propagates through the entire value chain, limiting throughput, increasing contamination risk, and reinforcing reliance on lower-value recovery outcomes. The NIR-SORT database developed by NIST—providing molecular fingerprints for 64 fabric types—represents meaningful progress, but the distance between laboratory capability and industrial deployment at scale reflects precisely the gap Joo identifies: between what the technology can do and what the system, as currently structured, can consistently deliver.

The recycling technologies emerging across the United States carry genuine promise. Eastman's molecular recycling facility in Kingsport, Tennessee, targets 110,000 metric tonnes of annual capacity—a tenfold difference from Syre's initial 10,000 metric tonne facility in Cedar Creek, North Carolina, which is moving from pilot to industrial scale backed by a $600 million offtake agreement from H&M. Reju's plant at the former Eastman Kodak site in Rochester, built in partnership with Goodwill and waste management firm WM, is designed to process 300 million garments per year. The investment is real. So are the constraints it is running into.

Mechanical and chemical recycling systems both require inputs that are consistent, identifiable, and adequately prepared. What they are receiving, increasingly, is a heterogeneous, contaminated stream whose composition resists the standardisation their economics depend on—a problem that begins upstream, not on the factory floor. Craig McAndrews, President and CEO of RTCM USA, is direct about what that means in practice. "Harmonised grading would help unlock higher value markets because it builds trust and consistency for buyers," he says. "Today there's still a lot of interpretation around quality, which makes it harder to scale trade across suppliers. If buyers can rely on standard definitions, they're more willing to commit to regular purchasing programs."

That absence of standardisation is not a minor administrative gap. It is a structural barrier to the investment confidence that industrial-scale recycling requires. On traceability, McAndrews is equally measured: "Traceability will matter more as fibre-to-fibre recycling grows, but the current supply chain has limitations for that level of visibility. Post consumer textiles move through fragmented collection and sorting systems, which makes full traceability difficult. In the near term, better sorting technologies and clearer material categories will drive more progress than full end-to-end traceability."

Then there is the price problem. Virgin synthetic fibres are petrochemical derivatives, and their cost does not reflect the disposal fees, landfill externalities, or regulatory penalties that a linear production model imposes on the broader system. Joo frames the distortion clearly: "We are seeing that virgin fiber prices do not take into account the total system costs that a linear production model imposes on our ecosystem. Once these costs are fully recognized, a circular material will be cost competitive and brand demand will reflect this."

The TCO analysis bears this out: while recycled T2T polyester carries a 161% upfront price premium over virgin PET, that gap—when disposal costs, durability, and regulatory exposure are factored into a total cost of ownership calculation—narrows to 8.3% over three years and inverts entirely over five, at which point the recycled option becomes 12% less expensive. The problem is that most procurement decisions are not made on a five-year horizon. They are made on a seasonal one.

Crude oil price volatility compounds the structural instability. Because virgin synthetic fibres are petroleum derivatives, a spike above $90 per barrel can abruptly shift the competitive calculus in favour of recycled alternatives—while a crash in oil prices can just as quickly erode brand commitments to sustainability that had taken years to negotiate. Recycled fibre economics, in other words, are partly hostage to the same commodity markets that created the linear model in the first place.

The longer-term structure of the industry, McAndrews suggests, will reflect these realities. "The industry will likely evolve into a mix of both. Collection and sorting tend to remain local and relationship influenced, which supports a network of specialized operators. At the same time, downstream recycling technologies require capital and scale, which tends to drive consolidation. The leaders will be the companies that connect reliable supply networks with efficient processing and market access." It is also, plainly, a description of a system still in formation—one whose scalability depends on resolving, upstream, the product design and material standardisation problems that no recycling technology, however sophisticated, can substitute for.

Joo, whose work sits at the feedstock end of that formation, offers a note of measured realism: "Constant and transparent review of outcomes need to be conducted with an understanding that we will not get things perfect the first time around. There are many expectations that we can create an ideal system but we sometimes lack the patience to get there. We can all strive for perfection but we shouldn't let failures make us give up or lose momentum."

The Loop That Was Never Built

Circularity will remain constrained not by a lack of innovation but by the persistent mismatch between product design, material composition, and the capabilities of recovery systems expected to process them. The sorting facilities, the chemical recyclers, the logistics networks—none of them can retrofit recoverability into a garment that was never designed to be recovered. That work has to happen earlier, at the drawing board, before the fibre is spun and the finish is applied. The system cannot close a loop that the product was never built to complete.