Food protection versus packaging reduction: finding the balance

Reducing packaging can save resources and cut costs, but the benefits depend on maintaining food safety, preventing spoilage and protecting products throughout distribution.

Packaging reduction is a priority for food manufacturers, retailers and their suppliers. Lighter formats and simpler designs can reduce material use and costs, while changes to packaging structure may improve recycling options.

These gains depend on preserving the functions that keep food safe and in good condition. If a redesigned pack increases spoilage or product damage, the resulting food waste may outweigh the benefits of using less material.

The challenge is to identify where packaging can be reduced without compromising performance. This requires an assessment of the entire packaged food system, from manufacturing and distribution to retail, storage and consumption.

Define the food’s protection needs

Packaging requirements vary by product. Fresh meat, fish and dairy products may need specific barrier properties, reliable seals and controlled temperatures. Fruit and vegetables may require cushioning, ventilation or moisture management, while dry foods can need protection against moisture, oxygen or light.

Packs must also withstand filling, stacking, transport and retail handling. A format that performs well on a production line may fail under compression or repeated handling further along the supply chain.

Leakage, bruising, broken seals and premature spoilage can lead to rejected deliveries, customer complaints and financial losses. Where food safety is compromised, failures may also require product withdrawal or recall.

Before redesign begins, businesses should establish the protection required, the intended shelf life and the conditions the pack will encounter throughout its journey.

Measure material savings against food waste

Packaging consumes resources, but so does the food it protects. Farming, processing, refrigeration and distribution all contribute to a food product’s environmental impact.

If a packaging change increases food loss, the additional environmental burden may outweigh the material savings. The outcome depends on the product, the packaging and the amount of extra waste generated.

A 2024 scoping review published in The International Journal of Life Cycle Assessment examined studies that accounted for packaging-related food waste. It identified shelf-life extension as an important factor in preventing waste, particularly for food categories with high environmental impacts. The review also highlighted gaps in the available evidence, reinforcing the need for product-specific assessments.

For manufacturers and food producers, material savings should therefore be measured alongside changes in spoilage, damage and product loss. Packaging weight alone cannot establish whether a redesign delivers an overall environmental improvement.

Remove unnecessary components first

A packaging audit can identify components that provide no essential protective, handling or communication function.

Depending on the application, opportunities may include removing decorative elements, simplifying secondary packaging or eliminating redundant layers.

Headspace also deserves examination, although it may be necessary for cushioning, filling operations or a controlled atmosphere. Its purpose should be established before any reduction is made.

Testing should confirm that the revised structure maintains product quality, handling performance and stacking strength. Retailers and logistics partners can help identify requirements that might otherwise be overlooked when a pack is assessed only at the manufacturing stage.

Match pack size to distribution and consumption

Better-fitting packaging can reduce material use, limit product movement and improve storage or transport efficiency. However, a closer fit may increase crushing, restrict ventilation or interfere with filling and sealing.

Pack size also affects how food is used after purchase. Smaller portions may help some households consume food before it deteriorates, while larger formats can suit customers with higher consumption needs.

Resealable closures and dispensing features may help reduce waste after opening. Their benefits must be weighed against the additional material, cost and manufacturing requirements they introduce.

The appropriate format depends on the product, customer and market. Purchasing patterns, portion requirements and food waste data provide a stronger basis for decisions than assuming one pack size suits every user.

Engineer protection more efficiently

Material reduction does not necessarily mean lower protection. Better structural design, reliable seals and barriers tailored to the product can help deliver the required performance with less material.

Reducing material thickness may also be possible where testing confirms that the pack remains reliable. Assessments should account for filling equipment, distribution conditions and retail handling.

For suitable perishable foods, modified-atmosphere packaging can help preserve quality by controlling the gases surrounding the product. Its effectiveness depends on the food, packaging material, gas composition, seal integrity and storage conditions.

It must complement appropriate hygiene, temperature control and food safety procedures.

Development should focus on meeting defined protection requirements. Additional material cannot reliably compensate for unsuitable barriers, poor sealing or weaknesses elsewhere in the packaging system.

Select materials for the application

Switching materials can change product protection, manufacturing performance, cost and recovery options. It does not automatically reduce material consumption or environmental impact.

Paper-based packaging can provide sufficient strength and protection for some foods. Others require coatings or liners to resist moisture, grease or oxygen, which may affect recycling options.

Plastics offer lightweight structures and useful barrier properties, but recovery depends on the material, pack design and local infrastructure. Glass and metals provide protective properties, while their manufacturing requirements, weight and transport impacts also need assessment.

Reusable formats introduce further considerations, including return transport, cleaning, breakage and the number of successful reuse cycles. Compostable packaging requires suitable technical performance and access to appropriate collection and treatment facilities.

Material selection should reflect the food’s protection requirements, production conditions, costs and realistic end-of-life options in the destination market.

Validate shelf life and food safety

Packaging performance must be verified under conditions relevant to the product and its supply chain.

Testing may need to account for temperature fluctuations, humidity, vibration, stacking and how consumers open, store and reseal the pack. Barrier measurements on an unconverted material cannot establish how the finished package will perform.

Food-contact suitability must also be confirmed for the intended use and applicable market requirements. In the EU, Regulation (EC) No 1935/2004 establishes general requirements for materials and articles intended to come into contact with food, including safeguards against harmful substance transfer.

A thinner film, new coating or alternative closure may behave differently under heat, moisture or contact with particular foods. Depending on the application, validation may include migration, seal-integrity, mechanical, barrier and shelf-life testing.

Any proposed extension to a product’s stated shelf life requires appropriate evidence. Packaging changes must continue to meet the product’s safety and quality requirements.

Identify the causes of food loss

Packaging data becomes more useful when linked to food losses across the supply chain.

Relevant measures include damaged products, leaking packs, rejected deliveries, spoilage at retail and waste after opening. Businesses should distinguish packaging failures from losses caused by inaccurate forecasting, poor stock rotation, temperature abuse or other handling problems.

This distinction helps direct investment. A better barrier will not resolve excess ordering, while a stronger pack may offer limited benefit if poor temperature control is the main cause of deterioration.

Trials should compare existing and proposed formats under representative conditions. Monitoring after launch can reveal problems missed during development and establish whether material savings have been achieved without increasing food waste.

Compare equivalent functions through life-cycle assessment

Life-cycle assessment (LCA) provides a structured way to evaluate environmental trade-offs. Its usefulness depends on the study’s scope, data quality and assumptions.

Comparisons should reflect an equivalent service, such as delivering a defined quantity of food in acceptable condition. They should account for packaging production, transport, relevant end-of-life routes and differences in food loss.

A lighter pack may use fewer resources per unit but perform less favourably if product damage increases. Additional packaging may deliver an overall environmental benefit if it prevents enough food waste to offset its own impacts.

Sensitivity analysis can help assess uncertainty, particularly when the effect of a packaging change on food waste has not been measured reliably.

Results vary across supply chains and markets.

Electricity sources, transport distances, recovery rates and consumer practices can influence the outcome. Assessments should also explain trade-offs between environmental indicators: lower greenhouse gas emissions do not necessarily mean better performance in every category.

Design for recovery alongside protection

End-of-life requirements should be considered from the start of packaging development.

Removing unnecessary components, avoiding incompatible material combinations where practical and making packs easier to empty or separate can support recycling. These choices must remain compatible with the food’s protection and safety requirements.

Recovery assessments should reflect the complete package and the systems available in its destination markets. Collection coverage, sorting capabilities and processing capacity vary between countries and regions.

Businesses should verify the practical recovery route before finalising specifications, disposal instructions and environmental claims. Technical recyclability alone does not establish that an effective collection and processing system is available.

Base packaging reduction on verified results

Effective packaging reduction starts with a clear baseline for material use, cost, product protection and food loss.

Packaging development, procurement, food safety, logistics and sustainability teams should use this information to develop alternatives and test them against defined requirements.

Operational trials and environmental assessments can then establish which changes deliver measurable benefits.

The strongest solutions remove unnecessary material while preserving the functions that prevent avoidable food waste. For food producers, packaging suppliers and retailers, success means delivering food safely and in good condition while reducing resource use and environmental impacts across the complete system.