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Reusable vs Single-Use Bioprocessing: Sustainability Comparison

Reusable vs Single-Use Bioprocessing: Sustainability Comparison

David Bell |

When producing cultivated meat, choosing between reusable and single-use bioprocessing systems is a key decision. Each option has distinct advantages and challenges, particularly around cost, scalability, and resource use. Here's a quick breakdown:

  • Reusable systems: Built with stainless steel, they require high initial investment but spread costs over time. Cleaning and sterilisation processes demand significant energy and water, but they generate less waste and can be recycled after long-term use.
  • Single-use systems: Made of polymers, these are pre-sterilised and discarded after use. They minimise cleaning needs, reduce water and energy consumption, and offer flexibility for smaller batches or frequent product changes. However, they produce more plastic waste and rely on specialised disposal methods.

Quick Comparison:

Category Reusable Systems Single-Use Systems
Initial Cost High (equipment, infrastructure upgrades) 50–66% lower (simpler setup)
Ongoing Costs High (cleaning, labour, downtime) 20–30% lower (no cleaning needed)
Energy/Water Use High (CIP/SIP processes) Up to 87% less water, 29% less energy
Waste Scrap metal, chemical byproducts Non-recyclable plastic waste
Scalability Better for large-scale production Limited to smaller batch sizes
Flexibility Less suited for frequent product changes Ideal for varied products/processes

The best choice depends on production scale, budget, and waste management capabilities. Many companies start with single-use systems for small-scale production and transition to reusable systems as they grow. Platforms like Cellbase can help producers source the right equipment for their needs.

Third Webinar: Sustainability in Bioprocessing

Environmental Impact

Looking at the environmental footprint of reusable versus single-use bioprocessing systems reveals some striking differences. Each approach comes with its own set of trade-offs, and cultivated meat producers must carefully consider these when aligning with their sustainability goals.

Energy and Water Use

Stainless steel bioreactors demand rigorous cleaning and sterilisation between production cycles. This involves energy-heavy clean-in-place (CIP) and steam-in-place (SIP) processes, which consume significant amounts of steam and water, adding to the overall resource burden [5].

On the other hand, single-use systems arrive pre-sterilised, eliminating the need for on-site sterilisation. This can lead to a dramatic reduction in resource use, cutting water consumption by up to 87% and energy use by as much as 29% for a typical process [8]. Additionally, the lighter and more compact nature of single-use components contributes to lower energy demands during operation [2]. Beyond these resource savings, the carbon footprint of each system also varies significantly.

Carbon Footprint

Single-use systems offer a clear operational advantage by bypassing energy-intensive sterilisation, resulting in a lower carbon footprint during use [2]. While reusable systems might seem more environmentally friendly at first glance, their high energy requirements for cleaning and sterilisation can outweigh the carbon emissions of single-use systems over time [3].

However, single-use systems come with a trade-off: their production relies on high-performance polymers, which carry a higher embedded carbon cost. For instance, disposable systems consume 4,124 MJ of energy during production compared to 1,090 MJ for stainless steel systems [4]. Despite this initial impact, the overall energy usage for disposable processes is about half that of traditional systems when factoring in all operational stages [4]. Stainless steel bioreactors, which can handle around 600 production cycles over their lifetime, spread their manufacturing emissions across multiple uses. Yet, the repeated cleaning cycles required for these systems result in significant operational emissions [2]. These carbon considerations naturally lead to differing waste management challenges.

Waste Management and Recycling

The waste generated by these systems highlights another key environmental contrast. Single-use systems produce a large amount of polymeric waste, primarily multilayer plastics, which are difficult to dispose of. Classified as biomedical waste, they often require incineration or specialised disposal, with limited opportunities for recycling [2].

Reusable systems, meanwhile, generate waste streams that include chemical byproducts from cleaning agents and scrap metal when equipment reaches the end of its life [2]. While stainless steel can be recycled, the recycling process is energy-intensive, and the chemical waste from repeated cleaning cycles demands careful handling.

Recycling options for single-use materials remain limited. The complexity of multilayer plastics and potential contamination makes it challenging to process them effectively [2]. Some manufacturers are working on take-back programmes and advanced recycling methods, but their reach is still narrow. In some cases, incineration for energy recovery or pyrolysis to convert materials into fuel can help reduce environmental impact [4]. However, these solutions fall short of fully addressing the large-scale waste issue.

For UK-based cultivated meat producers, these environmental considerations must also align with local waste regulations and sustainability goals. Platforms like Cellbase can aid in this process by connecting producers with suppliers who understand the environmental and technical implications of different bioprocessing systems. This ensures that equipment choices not only meet operational needs but also comply with regulations. Ultimately, tackling these waste challenges requires a comprehensive sustainability strategy that aligns with production objectives.

Cost Considerations

When deciding between reusable and single-use bioprocessing systems, cultivated meat producers must look beyond the sticker price. The total cost - spanning upfront investments to ongoing operational expenses - plays a vital role in shaping decisions that fit within budget limits and align with production objectives.

Capital Expenditure (CapEx)

Reusable systems come with a hefty upfront price tag. Investing in stainless steel bioreactors requires not only the equipment itself but also additional infrastructure like CIP (Clean-in-Place) and SIP (Sterilise-in-Place) systems, along with facility modifications to house these fixed vessels [10]. It’s a long-term commitment that involves significant preparation and resources.

On the other hand, single-use systems offer a more budget-friendly entry point. Their initial costs are 50–66% lower than reusable alternatives [1], making them especially appealing for startups or companies aiming for quick deployment. These systems integrate seamlessly into existing workflows, avoiding the need for expensive facility upgrades. Plus, since single-use components come pre-sterilised, there’s no need to invest in complex sterilisation infrastructure, cutting down on initial capital requirements.

For cultivated meat producers in the UK, where efficient allocation of resources is key, this stark difference in upfront costs can heavily influence the choice of system.

Operational Expenditure (OpEx)

Reusable systems bring recurring costs that add up over time. Cleaning, sterilisation, validation, and maintenance require substantial amounts of water, energy, chemicals, and skilled labour [10]. Additionally, the downtime needed for these processes between batches can reduce productivity and drive up labour costs.

In contrast, single-use systems trim operational expenses by 20–30% [10]. With no cleaning required and faster batch turnover, these systems reduce labour needs and overall facility running costs. For startups trying to manage tight budgets, this operational efficiency can be a game-changer.

Waste Disposal and Compliance Costs

Waste management is another area where costs vary significantly between the two systems, particularly in the UK, where stringent environmental regulations and landfill taxes apply.

Single-use systems generate multilayer plastic waste, which often falls under biomedical classification. This requires specialised disposal methods like incineration, which can be expensive. While some plastics can be incinerated to produce energy, the feasibility of this depends on local infrastructure [10].

Reusable systems, meanwhile, produce waste such as chemical byproducts from cleaning agents and metal scrap when equipment reaches the end of its life. Although stainless steel is recyclable, the energy needed for recycling adds to costs. Handling chemical waste also requires careful planning to comply with regulations.

Given these challenges, cultivated meat producers in the UK must factor in the high disposal costs associated with single-use plastics and the energy-intensive recycling of reusable systems.

To navigate these complexities, working with experienced suppliers is essential. Cellbase’s specialised marketplace connects producers with verified suppliers who provide transparent pricing and guidance on the total lifecycle costs of both system types. This support helps procurement teams make well-informed choices tailored to the specific demands of cultivated meat production.

Cost Category Reusable Systems Single-Use Systems
Initial CapEx High (equipment, CIP/SIP systems, facility upgrades) 50–66% lower (simpler setup, minimal upgrades)
Ongoing OpEx High (cleaning, energy, labour, downtime) 20–30% lower (no cleaning, faster turnaround)
Waste Management Chemical byproducts, energy-intensive recycling Polymeric waste, specialised disposal methods
Regulatory Compliance Chemical waste handling Biomedical waste, landfill tax implications

These cost comparisons highlight the need to align equipment choices with both production goals and sustainability objectives. A clear understanding of these financial factors can guide better sourcing and procurement decisions for cultivated meat producers.

Scalability and Flexibility

As cultivated meat moves into commercial production, scaling operations and adapting to shifting requirements becomes a priority. The decision between reusable and single-use bioprocessing systems plays a significant role in determining how well producers can meet market demands and adjust production processes.

Scaling Up for Growth

Single-use systems are used in nearly 85% of upstream processes and are excellent for gradual expansion. However, they are typically limited to vessel sizes of up to 2,000 litres. For larger volumes, producers often rely on parallel units or hybrid systems to meet demand [2][6][8]. This limitation makes scalability a key consideration when planning production growth.

Reusable systems, on the other hand, are better suited to high-volume, continuous production. Stainless steel bioreactors can handle larger batches and are designed for long-term use, provided they receive proper cleaning and maintenance [2][12]. While these systems require more infrastructure for cleaning and sterilisation, they offer cost advantages and operational efficiency over time, especially at scale.

Flexibility in Products and Processes

Flexibility is just as important as scalability. Single-use systems are particularly adaptable, especially when producing a variety of cultivated meat products. These systems use pre-sterilised, disposable vessels, allowing producers to switch between products or variants quickly. This setup reduces downtime and minimises the risk of cross-contamination [6][7][11].

Reusable systems, by comparison, require extensive cleaning between batches, which can be both time-consuming and resource-intensive [7][9][12]. While they are highly effective for consistent, standardised production, frequent product changes can be less efficient with these systems.

Experts often recommend single-use systems for early-stage production, transitioning to reusable or hybrid setups as operations scale [7][12]. Hybrid models are increasingly popular, combining the flexibility of single-use systems for upstream processes with the efficiency of reusable systems for downstream operations. This approach helps optimise production performance [6][12]. For cultivated meat producers, factors like vessel size, batch turnaround times, changeover durations, and cross-contamination risks are critical when planning both immediate needs and long-term growth strategies [2][6][8].

Cellbase supports cultivated meat producers by connecting them with trusted suppliers who meet these scalability and flexibility requirements, helping procurement teams align their equipment choices with their business goals.

Sourcing and Supply Chain Implications

The decision between reusable and single-use bioprocessing systems has a major impact on how cultivated meat producers source equipment and manage their supply chains. Each option comes with its own set of challenges, requiring careful supplier selection and adherence to strict standards. Addressing these challenges demands targeted procurement strategies.

Procurement Challenges in Cultivated Meat

Sourcing bioprocessing equipment for cultivated meat production presents unique obstacles. One of the most critical factors is ensuring GMP compliance, which guarantees that equipment meets stringent manufacturing standards. Without this, producers risk batch failures, delays, or even costly recalls[12].

Unlike traditional biopharmaceutical applications, cultivated meat production has distinct technical requirements. While both industries demand sterile, validated equipment, cultivated meat systems must also meet food-grade standards, handle larger batch sizes, and provide cost-effective scalability. There’s a stronger focus on food safety, allergen control, and accommodating diverse cell lines and media formulations[6][11].

Single-use systems, which are pre-sterilised and ready for immediate use, depend heavily on a steady supply of specialised consumables and components[2][4]. On the other hand, reusable systems, such as stainless steel bioreactors, introduce additional complexity. These bioreactors, with a lifespan of around 600 batches, require regular maintenance, cleaning agents, and spare parts[2]. This creates a more intricate supply chain with multiple points of potential failure.

Relying on non-specialised suppliers can exacerbate these challenges. Generalist suppliers may not provide validated equipment, leading to non-compliance, extended lead times, or inadequate technical support. To minimise risks, producers should prioritise specialised platforms that cater specifically to the cultivated meat industry[6][12].

How Cellbase Supports Equipment Procurement

Cellbase

Specialised platforms like Cellbase are transforming how cultivated meat producers navigate procurement challenges. As the first B2B marketplace exclusively for the cultivated meat sector, Cellbase simplifies the sourcing of critical materials and equipment by connecting buyers with curated, verified suppliers who understand the unique demands of this industry.

Through Cellbase, companies can access a wide range of specialised bioprocessing equipment, including bioreactors, culture systems, sensors, monitoring tools, downstream processing equipment, and consumables. Listings are detailed with use-case specifications - such as scaffold compatibility, serum-free options, or GMP compliance - making it easier for buyers to identify the right products quickly.

Cellbase’s strict verification process ensures that only validated suppliers and products are featured, significantly reducing the procurement risks associated with non-compliance or subpar equipment. This approach saves buyers from conducting extensive due diligence, while the platform’s transparent pricing eliminates the uncertainty often tied to specialised equipment sourcing.

Additionally, the platform’s cultivated meat-specific expertise and comprehensive compliance documentation help reduce technical risks and ensure equipment compatibility. For producers weighing single-use versus reusable systems, Cellbase connects them with suppliers experienced in both, while offering valuable market insights to guide their bioprocessing strategies.

Recognising the global nature of cultivated meat supply chains, Cellbase also provides worldwide shipping options, including cold chain logistics for temperature-sensitive materials. Features like a fast checkout process and direct messaging with suppliers further streamline the procurement experience, making it easier for companies to secure the equipment they need efficiently and confidently.

Conclusion

Choosing between reusable and single-use bioprocessing systems for cultivated meat production is no simple task. Each option comes with its own set of trade-offs that need to be weighed carefully. Single-use systems, for instance, avoid the energy and water demands of cleaning and sterilisation, which can reduce their immediate environmental footprint. However, they generate more plastic waste and can lead to higher operational costs over time.

On the other hand, reusable stainless steel systems require a hefty initial investment and ongoing maintenance. But for large-scale, continuous production, they often prove more economical in the long run. These systems can also be recycled at the end of their lifespan, though the recycling process itself requires considerable energy. The decision often comes down to balancing upfront costs with operational efficiency over time.

The right choice depends heavily on the production context. For example, a start-up focusing on product development and small-scale production might lean towards the flexibility and lower initial costs of single-use systems. Meanwhile, established producers with high-volume outputs may find reusable systems more cost-effective and aligned with long-term sustainability goals. Factors like production scale, batch frequency, facility infrastructure, and local waste management capabilities all play a role in determining the best fit.

Supply chain considerations also add another layer of complexity. Single-use systems rely on a consistent supply of specialised consumables, while reusable systems demand access to maintenance expertise, cleaning agents, and spare parts. Both approaches require partnerships with GMP-compliant suppliers who understand the unique food-grade and scalability requirements of cultivated meat production.

Platforms like Cellbase, the first B2B marketplace dedicated to the cultivated meat industry, are helping producers navigate these challenges. By connecting them with verified suppliers of both reusable and single-use equipment, and offering transparent pricing and industry-specific insights, such platforms empower companies to make informed decisions that align operational and sustainability goals.

In some cases, a hybrid approach might be the most effective solution. Using single-use systems for pilot batches and process development, while transitioning to reusable systems for large-scale production, allows producers to maintain flexibility without sacrificing long-term cost efficiency or environmental responsibility. This tailored strategy highlights the importance of context-specific decision-making in fostering the cultivated meat industry's sustainable growth.

FAQs

What are the environmental pros and cons of reusable vs single-use bioprocessing systems in cultivated meat production?

Reusable and single-use bioprocessing systems play different roles in the environmental landscape of cultivated meat production.

Reusable systems demand considerable energy and water for cleaning and sterilisation, which can lead to a higher carbon footprint. However, they create less waste over time, making them a practical choice for large-scale, long-term production.

Single-use systems, by contrast, eliminate the need for extensive cleaning and sterilisation, conserving water and energy. The downside is the significant amount of plastic waste they produce, which can be challenging to manage. The overall environmental impact of these systems hinges on the materials used and how effectively the waste is handled.

Choosing between these systems often comes down to factors like production scale, costs, and sustainability objectives. For cultivated meat producers, platforms such as Cellbase offer tailored solutions to help find the right equipment, striking a balance between environmental concerns and operational needs.

What are the cost advantages of single-use systems compared to reusable systems for start-ups and established producers?

The decision between single-use and reusable bioprocessing systems hinges on the specific needs and scale of production.

Single-use systems are often a go-to for start-ups. Why? They require a smaller initial investment, eliminate the hassle of cleaning and sterilisation, and are quicker to set up. These advantages make them a practical choice for smaller-scale or early-stage manufacturing.

In contrast, reusable systems shine in larger-scale operations. While their upfront costs are higher, their durability and ability to be reused can lead to better cost efficiency in the long run, particularly when production volumes are substantial. Ultimately, deciding which system to use involves weighing factors like the size of production, waste management considerations, and overall operational objectives.

What are the waste management challenges of single-use systems, and how are they being addressed?

Single-use bioprocessing systems offer convenience and scalability, but they come with a hefty downside: the sheer amount of plastic waste they produce. Much of this waste is tricky to recycle because it’s often contaminated with biological materials, raising serious environmental concerns.

To tackle these challenges, companies are working on solutions like creating biodegradable materials, advancing recycling technologies, and introducing waste-to-energy programmes. Some organisations are also refining their processes to use fewer materials in the first place, cutting down waste at its source. These initiatives aim to combine the practicality of single-use systems with a more environmentally conscious approach to managing waste.

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Author David Bell

About the Author

David Bell is the founder of Cultigen Group (parent of Cellbase) and contributing author on all the latest news. With over 25 years in business, founding & exiting several technology startups, he started Cultigen Group in anticipation of the coming regulatory approvals needed for this industry to blossom.

David has been a vegan since 2012 and so finds the space fascinating and fitting to be involved in... "It's exciting to envisage a future in which anyone can eat meat, whilst maintaining the morals around animal cruelty which first shifted my focus all those years ago"