This week, we’re celebrating Zero Waste Week by taking you behind the scenes of one of the most important innovations at the heart of Cullen: our closed-loop recycling system. It is one of the defining features of our 14-acre manufacturing site and a core reason why Cullen leads the way in sustainable, fibre-based packaging across the UK, Europe, and beyond.
For us, zero waste isn’t a theme for one week – it’s a principle that underpins how we operate every single day. Our process is built to keep materials in use for as long as possible, reduce environmental impact at every stage, and demonstrate what responsible manufacturing can achieve when design, engineering, and sustainability work together.
Turning Waste Into Worth
Every year, Cullen transforms over 6,000 tonnes of FSC-certified corrugate waste into new moulded fibre products. Instead of being disposed of or sent off-site, the corrugate offcuts from our production lines take on a whole new life within our moulded fibre division.
It begins with leftover corrugate generated during corrugated packaging production — everything from die-cut trims to board offcuts. These materials are diverted straight into our recycling system, where they are pulped, refined, and reintegrated into moulded fibre production. The result? Strong, versatile, plastic-free packaging trays and inserts that support industries across food, produce, healthcare, retail, horticulture, and much more.
This isn’t simply recycling. It is circular manufacturing – a process where waste becomes opportunity, and opportunity becomes new products with a significantly lower environmental footprint.
A Circular System Found Nowhere Else in Europe
One of the things that makes Cullen unique is that we are Europe’s only combined corrugate and moulded fibre packaging manufacturer operating from a single site. This integration allows us to do something not many manufacturers can achieve: maintain complete control over the entire material lifecycle.
By keeping corrugate production, pulp creation, tooling, moulding, finishing, and packing under one roof, we are able to:
Reduce material waste dramatically
Lower transport emissions
Improve resource efficiency
Ensure consistent, traceable quality
Reduce lead times and increase output stability
This closed-loop process runs every day of the year — and it means we’re not reliant on imported pulp, external recyclers, or complex logistics chains. Instead, we turn our own material by-products into something that delivers real-world value.
It’s innovation in its simplest form: use what you already have to create something better.
Sustainability You Can See - and Measure
Cullen’s closed-loop recycling system supports our environmental commitments while helping customers meet theirs. Every moulded fibre product that leaves our facility represents direct, measurable sustainability gains:
Less Waste
Materials stay in circulation for longer, reducing the amount of waste entering the recycling stream or landfill.
Lower Carbon Footprint
Reprocessing on-site eliminates the transport miles and emissions associated with sending offcuts to external recyclers.
Plastic Replacement at Scale
Our trays, inserts, and fitments help thousands of businesses remove single-use plastics from their supply chains.
Efficient Resource Use
Using our own corrugate offcuts reduces reliance on virgin fibres and external pulp sources.
These environmental benefits support the wider goals of Zero Waste Week – proving that when manufacturing is designed with circularity in mind, the impact is immediate and meaningful.
Innovation That Goes Beyond Recycling
While recycling is a key part of our sustainability strategy, it’s far from the only one. Innovation runs through every stage of our operations.
Our teams continually explore new moulded fibre formats, refine tooling to reduce material use, and design corrugate structures that minimise waste without compromising performance. Efficiency improvements on the factory floor ensure we use less energy and water where possible. And through ongoing process audits, we find new opportunities to improve flow, reduce scrap, and streamline movement across the site.
Innovation at Cullen isn’t a project – it’s a mindset. Zero Waste Week simply gives us the opportunity to shine a spotlight on work our teams do all year round.
A Future Built on Circular Thinking
As demand for sustainable packaging continues to grow, our investment in closed-loop systems positions Cullen – and our customers – for the future. The benefits are clear: reduced environmental impact, resilient supply chains, and packaging designed with purpose.
What we do behind the scenes has a direct effect on the businesses we support every day. When customers choose Cullen, they’re choosing packaging with a positive impact built in from the very first stage of its lifecycle.
Watch the Full Cullen UnPacked Video
Take a look at our closed loop recycling process.
Ready to find out how Cullen can help with your packaging needs?
Talk to our team to see how Cullen’s closed-loop innovation can help your business deliver more – sustainably.
This week, we’re celebrating Zero Waste Week by taking you behind the scenes of one of the most important innovations at the heart of Cullen: our closed-loop recycling system. It is one of the defining features of our 14-acre manufacturing site and a core reason why Cullen leads the way in sustainable, fibre-based packaging across the UK, Europe, and beyond.
For us, zero waste isn’t a theme for one week – it’s a principle that underpins how we operate every single day. Our process is built to keep materials in use for as long as possible, reduce environmental impact at every stage, and demonstrate what responsible manufacturing can achieve when design, engineering, and sustainability work together.
Turning Waste Into Worth
Every year, Cullen transforms over 6,000 tonnes of FSC-certified corrugate waste into new moulded fibre products. Instead of being disposed of or sent off-site, the corrugate offcuts from our production lines take on a whole new life within our moulded fibre division.
It begins with leftover corrugate generated during corrugated packaging production — everything from die-cut trims to board offcuts. These materials are diverted straight into our recycling system, where they are pulped, refined, and reintegrated into moulded fibre production. The result? Strong, versatile, plastic-free packaging trays and inserts that support industries across food, produce, healthcare, retail, horticulture, and much more.
This isn’t simply recycling. It is circular manufacturing – a process where waste becomes opportunity, and opportunity becomes new products with a significantly lower environmental footprint.
A Circular System Found Nowhere Else in Europe
One of the things that makes Cullen unique is that we are Europe’s only combined corrugate and moulded fibre packaging manufacturer operating from a single site. This integration allows us to do something not many manufacturers can achieve: maintain complete control over the entire material lifecycle.
By keeping corrugate production, pulp creation, tooling, moulding, finishing, and packing under one roof, we are able to:
Reduce material waste dramatically
Lower transport emissions
Improve resource efficiency
Ensure consistent, traceable quality
Reduce lead times and increase output stability
This closed-loop process runs every day of the year — and it means we’re not reliant on imported pulp, external recyclers, or complex logistics chains. Instead, we turn our own material by-products into something that delivers real-world value.
It’s innovation in its simplest form: use what you already have to create something better.
Sustainability You Can See - and Measure
Cullen’s closed-loop recycling system supports our environmental commitments while helping customers meet theirs. Every moulded fibre product that leaves our facility represents direct, measurable sustainability gains:
Less Waste
Materials stay in circulation for longer, reducing the amount of waste entering the recycling stream or landfill.
Lower Carbon Footprint
Reprocessing on-site eliminates the transport miles and emissions associated with sending offcuts to external recyclers.
Plastic Replacement at Scale
Our trays, inserts, and fitments help thousands of businesses remove single-use plastics from their supply chains.
Efficient Resource Use
Using our own corrugate offcuts reduces reliance on virgin fibres and external pulp sources.
These environmental benefits support the wider goals of Zero Waste Week – proving that when manufacturing is designed with circularity in mind, the impact is immediate and meaningful.
Innovation That Goes Beyond Recycling
While recycling is a key part of our sustainability strategy, it’s far from the only one. Innovation runs through every stage of our operations.
Our teams continually explore new moulded fibre formats, refine tooling to reduce material use, and design corrugate structures that minimise waste without compromising performance. Efficiency improvements on the factory floor ensure we use less energy and water where possible. And through ongoing process audits, we find new opportunities to improve flow, reduce scrap, and streamline movement across the site.
Innovation at Cullen isn’t a project – it’s a mindset. Zero Waste Week simply gives us the opportunity to shine a spotlight on work our teams do all year round.
A Future Built on Circular Thinking
As demand for sustainable packaging continues to grow, our investment in closed-loop systems positions Cullen – and our customers – for the future. The benefits are clear: reduced environmental impact, resilient supply chains, and packaging designed with purpose.
What we do behind the scenes has a direct effect on the businesses we support every day. When customers choose Cullen, they’re choosing packaging with a positive impact built in from the very first stage of its lifecycle.
Watch the Full Cullen UnPacked Video
Take a look at our closed loop recycling process.
Ready to find out how Cullen can help with your packaging needs?
Talk to our team to see how Cullen’s closed-loop innovation can help your business deliver more – sustainably.
