What jobs does packaging do for a food product, and how do environmental concerns shape packaging choices?
The functions of food packaging, including protecting and preserving food, carrying information, attracting consumers and making food easy to transport, and the environmental issues raised by packaging.
An SQA National 5 Health and Food Technology answer on food packaging, covering its functions in protecting and preserving food, carrying information, attracting consumers and aiding transport, and the environmental issues packaging raises.
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What this dot point is asking
The SQA wants you to know the functions of food packaging, why each one matters, and the environmental issues packaging raises, along with how manufacturers can reduce its environmental impact.
The functions of packaging
These functions explain why almost all manufactured food is packaged: without it, food would spoil faster, be damaged more easily, give the consumer no information and be harder to sell and transport.
Protecting and preserving
The most basic job is keeping the food safe and fresh. Packaging keeps out germs, dirt and pests, and a good seal keeps out air and moisture, which slows spoilage and extends shelf life. Some packaging does this actively, but at National 5 the key point is that packaging helps the food last longer and reach the consumer in good condition.
Informing and attracting
Packaging is also where the consumer gets the information they need, much of which is required by law (covered in the labelling topic). At the same time, the design of the pack works to attract shoppers and build the brand, which helps the product sell against its competitors.
Environmental issues
Manufacturers and consumers are increasingly concerned about this, so reducing packaging waste has become an important goal.
Examples in context
Example 1. A ready meal tray. A ready meal tray protects the food from damage, keeps it sealed and fresh, carries cooking instructions and nutritional information, and lets the meal be stacked and transported. Switching to a recyclable tray keeps these functions while cutting landfill waste.
Example 2. Loose versus packaged fruit. A supermarket sells loose apples alongside plastic-bagged ones. The loose option reduces packaging waste, showing how a manufacturer or retailer can cut environmental impact while the fruit's skin already provides some natural protection.
Try this
Q1. State two functions of food packaging. [1 mark]
- Cue. Any two of: protect from damage and contamination, preserve and keep fresh, carry information, attract the consumer, aid transport.
Q2. State one way a manufacturer can reduce the environmental impact of packaging. [1 mark]
- Cue. Use less packaging, or use recyclable, reusable or biodegradable materials.
Exam-style practice questions
Practice questions written in the style of SQA exam questions on this dot point, with worked answer explainers. The year tag is the paper they imitate, not the source.
SQA N5 style4 marksDescribe four functions of food packaging.Show worked answer →
A 4-mark answer needs four separate functions, each clearly described.
Function 1. Protect the food from damage (such as crushing or bruising) and from contamination by dirt, germs and pests during transport and storage.
Function 2. Preserve the food and keep it fresh for longer, for example by keeping out air and moisture, which extends shelf life.
Function 3. Carry information the consumer and the law require, such as the name of the food, ingredients, weight, use-by or best-before date, storage and cooking instructions and nutritional information.
Function 4. Attract the consumer through its design, colour and branding, helping the product sell, and make the food easy to carry, stack and transport.
Markers reward four distinct functions. Repeating the same idea (for example "keeps it fresh" and "stops it going off") counts once.
SQA N5 style3 marksExplain the environmental issues caused by food packaging and describe two ways manufacturers can reduce them.Show worked answer →
This question covers the problem and the solutions.
Environmental issues. Packaging uses up resources and energy to make, and much of it ends up as waste in landfill, where some materials (such as certain plastics) take a very long time to break down and can pollute the environment.
Way 1. Use less packaging (reduce), for example thinner materials or removing unnecessary layers, so less waste is created.
Way 2. Use recyclable, reusable or biodegradable materials, so packaging can be recycled, used again or broken down naturally instead of going to landfill.
A further point that scores is clear labelling that tells consumers how to recycle the packaging. Markers reward the waste/resource issue and two sensible reduction methods.
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