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The food manufacturing sector accounts for almost a quarter (24.2%) of total UK manufacturing turnover, and as a result, has a significant environmental impact. From energy-intensive processing and refrigeration to water consumption, packaging, transport and waste, the industry can create environmental pressures at every stage of the product lifecycle.
In a sector where sustainability and net zero are growing increasingly important, food manufacturers are under mounting pressure to reduce emissions, as a way to cater to green-minded clients, and tackle operational costs. In this guide, we examine the impact of food manufacturing on the environment and explore how sustainable food production can reduce carbon emissions, minimise waste, and cut energy costs.
Sustainable food manufacturing is an approach to food production that aims to minimise negative impacts on both the environment and local communities. It involves reviewing every stage of the value chain, from farming and ingredient sourcing to processing, packaging, distribution, and waste management, to ensure operations are as efficient and low impact as possible.
A central focus is reducing greenhouse gas emissions across production, processing, and distribution. This can be achieved by improving energy efficiency, transitioning to lower-carbon energy sources, and reducing reliance on fossil fuels throughout manufacturing operations.
Minimising food waste is another key element. Through more accurate demand forecasting, improved processing methods, and smarter packaging solutions, manufacturers can reduce the amount of edible food that is discarded. Where waste cannot be avoided, recycling and recovery should be prioritised to keep materials within the circular economy wherever possible.
Responsible sourcing is also a fundamental part of sustainable food manufacturing. This involves selecting ingredients and materials from ethical suppliers and, where practical, sourcing locally to reduce transport emissions while supporting responsible farming practices and regional supply chains.
It is important that sustainability doesn’t compromise food safety and quality, and manufacturers should balance environmental improvements with regulatory compliance and consumer expectations.
Sustainability in food manufacturing is essential for ensuring the long-term availability of food in a world where populations are growing and climate change is impacting production and harvests.
According to Our World in Data, roughly half of the world’s habitable land is used for agricultural purposes , presenting issues as the global population expands, placing strain on land, water, and other natural resources. Without sustainable practices, we risk food and water shortages, soil degradation, and the urbanisation of areas that could otherwise support farming.
Meeting increasing consumer demand for sustainable food is another driving factor. With net zero at the forefront of many debates and national targets, more and more shoppers are prioritising ethically and environmentally responsible products. In the UK alone, spending on organic goods is estimated around £60 million each week, reflecting a growing appetite for sustainable options. By responding to this trend, sustainable food manufacturers can attract new customers, and future-proof their businesses in a competitive market.
Combatting climate change is also an important motivator for sustainability in food manufacturing. The impacts of climate change, such as extreme weather, shifting rainfall patterns, and rising temperatures have a direct effect on crop yields, livestock health, biodiversity and the overall stability of food supply chains. By adopting sustainable practices, manufacturers can help reduce greenhouse gas emissions and contribute to efforts to reduce global warming, whilst protecting the materials that are used in their products.
Progress is already being made in certain areas, such as packaging. For example, members of the Food and Drink Federation have increased the average recycled content in plastic packaging from 9% in 2018 to 25.8% in 2022, demonstrating how small improvements can make a measurable difference.
For individual food manufacturers, sustainability is also becoming a commercial necessity. Large retail clients, including major UK supermarkets such as Tesco, Sainsbury’s, and Morrisons, have committed to ambitious climate targets, with many aiming to reach net zero across their value chains by 2040–2050. As a result, manufacturers are increasingly expected to measure, report, and reduce their environmental impact in order to maintain and win contracts, particularly with large partners.
At the same time, rising operational costs, particularly for energy, water, and raw materials are putting pressure on margins. By implementing sustainability initiatives such as energy efficiency and waste reduction, manufacturers can deliver both environmental benefits and cost savings, helping them remain competitive.
Ultimately, sustainability in food manufacturing is more than just a regulatory requirement, it is essential for securing future food supply, meeting consumer demands, and securing the future of both the environment and your business.
Whilst the food manufacturing sector is essential for feeding a growing population, its impact on the environment is impossible to ignore. The sector is responsible for 26% of the world’s greenhouse gas emissions, with the agricultural sector accounting for about 70% of the world’s freshwater withdrawals.
In the UK, more than 98% of food is transported by road, adding further pressure through fuel consumption and air pollution. At the same time, the global population continues to rise, with food demand projected to increase by 60% by 2050, intensifying the need to prioritise sustainability across every stage of the supply chain.
The environmental impact of food manufacturing spans multiple connected areas:
Water is essential throughout the production cycle, from irrigation and livestock farming to processing, cleaning, and wastewater disposal. Without water management strategies, growing demand will place strain on already stressed water systems.
Habitat loss, poor soil quality and pollution of farmland can reduce biodiversity and destroy ecosystems, threatening long-term food security.
Intensive farming practices and heavy pesticide use can result in soil degradation, but sustainable, regenerative and ethical farming approaches are increasingly used for improving supply chain sustainability.
Emissions arise from agriculture and manufacturing processes, refrigeration systems, storage, and transportation networks. Reducing energy use across operations is essential to reducing carbon impact.
Food manufacturing is energy-intensive, requiring significant power for processing, heating, cooling, and cold storage. Transitioning to renewable energy sources and improving energy efficiency are critical steps toward sustainability in food manufacturing.
In food manufacturing, some food waste is unavoidable, but working to reduce unnecessary waste can help improve both environmental performance and operational efficiency.
Reliance on single-use plastics and non-recyclable materials results in more materials being sent to landfill, so sustainable packaging innovation plays a major role in improving sustainability in food manufacturing.
Emissions from factories and transport fleets contribute to poor air quality, particularly in urban areas where manufacturing and distribution hubs are concentrated.
Although sustainability in food manufacturing can be a complex issue to tackle, there are lots of impactful ways manufacturers can focus their efforts on minimising their environmental impact at every stage of production.
Supply chains account for a substantial share of a food manufacturer’s overall emissions and environmental footprint, particularly through Scope 3 emissions generated by suppliers, logistics providers, and other external partners. By assessing and selecting suppliers based on their environmental credentials and sustainability commitments, manufacturers can reduce these indirect emissions.
However, improving supply chain emissions is not only about switching suppliers. Engaging with existing partners can often be just as effective. By encouraging suppliers to measure and report their own emissions, set reduction targets, and adopt more sustainable practices, manufacturers can work collaboratively to lower Scope 3 emissions across the value chain.
Sourcing ingredients locally can help minimise transport emissions and fuel costs. Shorter supply routes also decrease transit times, helping to minimise spoilage, and reduce food waste.
For many manufacturing businesses, Scope 3 can feel like a complex and overwhelming area of emissions management. A practical approach is to start by collecting the data that is currently available, even if it is incomplete or estimated. Over time, businesses can improve the accuracy and depth of this information by working more closely with suppliers and refining their measurement methods. Taking this step-by-step approach helps manufacturers build a clearer picture of their supply chain impact whist progressing towards more effective emissions reduction.
Improving energy efficiency not only reduces emissions but also reduces energy costs. Developing a clear, well-structured energy management plan enables manufacturers to set and achieve realistic energy goals.
A good starting point is conducting an energy audit to get a clear picture of how your business uses energy and identify any gaps where improvements can be made. This establishes a clear baseline, making it easier to measure the effectiveness of any new energy efficiency measures.
Maintaining and optimising equipment with regular servicing of machinery ensures it operates at peak efficiency, prevents energy waste caused by faults or wear, and extends lifespan. Upgrading to energy-efficient motors, compressors, refrigeration systems, and production equipment can also significantly reduce consumption, particularly in energy-intensive food manufacturing environments.
Basic efficiency measures can also have a substantial impact, such as improving insulation, installing LED lighting with motion sensors, optimising heating and cooling systems, and implementing automated controls to prevent equipment from running unnecessarily.
Effective water management is a key component of sustainability in food manufacturing, as food production is a water-intensive industry, particularly in processing, cleaning, and sanitation.
Manufacturers can reduce water use by installing efficient spray nozzles, automated shut-off systems, and low-flow cleaning equipment, as well as reviewing cleaning-in-place (CIP) processes to minimise unnecessary consumption.
It is also important to treat wastewater responsibly, avoiding use of harsh and damaging chemicals that can affect local ecosystems and biodiversity.
Reducing food waste is essential for improving sustainability in food manufacturing. Manufacturers can cut waste by improving forecasting and inventory management to prevent overproduction and spoilage. Repurposing by-products into new products and donating safe surplus food to charities also helps divert waste from landfill.
Packaging also plays an important role. Businesses can reduce their environmental impact by minimising packaging overall and cutting out unnecessary materials. Switching to recyclable, compostable, or reusable packaging options further lowers waste and supports circular economy. By redesigning packaging with sustainability in mind, manufacturers can reduce emissions, cut material use, and meet growing consumer expectations for environmentally responsible products.
Renewable energy adoption is a powerful way to improve sustainability in food manufacturing and has the potential to reduce energy costs over time. Investing in on-site solar panels is a great option for food manufacturers, particularly for large sites with lots of roof space.
Alternatively, switching to green energy tariffs or considering a renewable PPA ensures electricity is sourced from renewable providers, without having to manage your own renewable energy infrastructure.
Another option is installing heat recovery systems which allow manufacturers to capture and reuse excess heat from production processes.
By developing products that use lower-impact ingredients, such as those with smaller carbon or water footprints or more plant-based options, manufacturers can reduce environmental impact at source. Reformulating recipes to extend shelf life also helps cut food waste across the supply chain. Thoughtful product development supports both sustainability goals and caters to a growing demand for greener options.
Getting your team involved in your sustainability initiatives is a great way to work towards your goals. Educating staff about sustainability goals and environmental targets helps create a culture of shared responsibility. Providing regular training on energy efficiency, waste reduction, and resource management empowers employees to contribute through everyday actions.
Consultus’ Discover Cultural Engagement tool is an innovative way to allow your teams to interact virtually with their workspace allowing for a more fun way to navigate and learn about energy.
When sustainability becomes part of your day-to-day operations, you are more likely to make meaningful progress.
Whether you are well on your way with your sustainability initiatives or just beginning your journey, our Net Zero Pathway service provides a customised roadmap to help you achieve your targets. The plan is designed to integrate smoothly with your current operations, giving you a clear, step-by-step approach to decarbonisation. This not only supports your sustainability targets, but also helps to cut costs, identify inefficiencies and improve overall operations.
We also offer a Virtual Energy Management (VEM) service, giving you access to expert guidance and practical changes to reduce energy consumption and waste. VEM builds on your energy data, helping you to understand and make changes to your energy usage, reducing costs and carbon whilst improving efficiency across your operations.
Addressing Scope 3 emissions is an important part of any sustainability strategy in food manufacturing. That’s why we have a dedicated team focused on collecting accurate data, benchmarking performance, and identifying opportunities for reduction. Our specialists work with both your organisation and your supply chain to evaluate environmental impact and provide actionable recommendations, helping you make progress in tackling your emissions.
You can find out more about sustainable manufacturing in our free guide. For more information about our services, or to discuss your sustainability requirements, get in touch with our team.
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