In the UK, the Food Waste Reforms are fast approaching, and with them comes anticipated shifts in the economics of anaerobic digestion (AD). Gate fees for food waste treatment are already rising in response to growing demand — and this trend is at risk of accelerating, as demand upon AD sites increases.
Even before the introduction of Simpler Recycling requirements in England, WRAP’s most recent gate fee survey (conducted 2024/25) highlighted an increasing median cost for food waste processing, alongside the demise of negative gate fees (where local authorities were previously paid for their waste as a valuable feedstock).
This change is being driven by several factors: increased volumes of segregated food waste, the end of renewable subsidies such as Feed-in Tariffs and the Renewable Heat Incentive, and rising operational costs across AD facilities.
Why rising anaerobic digestion costs matter
Packaged food waste exists far beyond household kerbside collections. Supermarket returns, expired retail stock, rejected manufacturing batches, catering waste and low-grade agricultural produce all contribute to growing volumes of unavoidable food waste.
While redistribution is always the preferred solution where food remains fit for human consumption, this is often not possible. In these cases, the focus must shift to how this energy-rich organic material can be repurposed safely, efficiently and sustainably.
Anaerobic digestion remains a critical outlet — but only when feedstock quality is high.
Contamination is driving higher food waste processing costs
One of the drivers behind rising AD operational costs is thought to be contamination within food waste streams. Plastics, packaging materials and physical contaminants introduce operational, regulatory and reputational risks for plant operators.
Poor-quality feedstock can:
- Reduce digestion efficiency and gas yields
- Increase plant downtime and maintenance requirements
- Accelerate machinery wear
- Impact permit compliance
Effective food waste depackaging ensures that the organic fraction entering anaerobic digestion facilities is clean, consistent and compliant. This is why depackaging performance now matters more than ever.
Our depackaging machines have been independently tested, achieving 99.7% purity in the separated organic fraction.
Alternatives to anaerobic digestion for food waste
Although anaerobic digestion plays a central role in food waste treatment, it is not the only solution. Depending on waste type, legislation and biosecurity requirements, alternative pathways may include conversion into animal feed, insect and fly farming applications, or other biological treatment processes.
Each option carries different environmental, economic and regulatory considerations. However, all rely on one critical step: effective separation of food from packaging.
Depackaging remains crucial for a circular economy
Regardless of the final destination of the organic material, depackaging is essential to enable circular economy outcomes.
Our Dominator Depackaging systems separate food waste from packaging at scale, allowing packaging materials to be directed into responsible recycling streams and the organic fraction (slurry) to be reused for anaerobic digestion, animal feed, or alternative applications.
Improve your food waste depackaging performance
If you want to improve depackaging purity, reduce contamination risk and strengthen negotiations with anaerobic digestion plants, we can help. Contact us today to learn how our depackaging technology can support your food waste processing strategy.
Sources: WRAP, 2025, Banbury, Gate Fees Report 2024/25: Comparing the costs of alternative waste treatment options]