Sustainability: Food

Ecological and Ethical Impacts of Food Choices

Food choices affect people, the planet and animals:

• People: Ensuring farm workers and food producers receive fair wages and safe working conditions. Choosing Fairtrade products guarantees growers in developing countries a fair minimum price for crops like bananas and cocoa.
• Planet: Protecting soil, water, and air by cutting pollution, transport emissions, and packaging waste.
• Animals: Supporting humane farming systems, such as free-range methods that allow animals outdoor access.

Producing meat and dairy requires significantly more land, water, and fossil fuel than growing plant foods. Eating more beans, lentils and seasonal vegetables instead of meat lowers a family's carbon footprint.

Cutting down on food waste is just as vital for the planet and the household budget:

• Food sent to landfill rots without oxygen and releases methane, a potent greenhouse gas that drives climate change.
• Wasting food squanders all the water, fuel, packaging, and labour used to grow and transport it.
• Preventing waste saves money, because uneaten food thrown in the bin is money lost.

Sustainable and Ethical Shopping Choices

Choices made in the shop cut waste and emissions before food even reaches the kitchen.

• Food miles: The distance food travels from where it is grown to where it is bought. Choosing local, seasonal Irish produce shortens transport routes, burning less fuel and reducing emissions.
• Organic food: Food produced without artificial fertilisers or synthetic pesticides, which protects soil health, waterways, and wildlife. Look for an organic certification symbol on the packaging.
• Fairtrade: A certification mark showing that producers in developing countries received a guaranteed fair wage, safe working conditions, and social development funds.
• Packaging: Choose loose fruit and vegetables over produce wrapped in plastic trays, and always bring reusable shopping bags.
• Irish initiatives: Bord Bia's Origin Green independently audits sustainable farming and food manufacture in Ireland. FoodCloud connects supermarkets with charities to redistribute edible surplus food.

Preventing Food Waste: Selecting, Preparing, and Storing

Food waste is divided into unavoidable food waste (inedible scraps like bones, eggshells, and banana skins) and avoidable food waste (edible food thrown out, such as stale bread or wilted bagged salad).

• Selecting: Check the cupboards and fridge before leaving home, plan weekly meals, write a shopping list, and avoid multi-buy deals on short-shelf-life goods.
• Preparing: Weigh portions of dry foods like pasta and rice before cooking so extra food is not left on plates. Peel vegetables thinly to save the nutrients just under the skin.
• Storing: Practice stock rotation (FIFO) by placing newly purchased items behind older stock so items with earlier dates are used first.
• Date marks: Perishable foods must be eaten before their use-by date to prevent food poisoning. Food is usually still safe after its best-before date, but its flavour, texture or appearance may have dropped.
• Leftovers: Cool leftovers quickly, cover them and refrigerate (0–5 °C) within two hours; use within two days and reheat once only, until piping hot right through. Use stale bread for breadcrumbs or French toast, leftover roast meat in a curry, and cooked potatoes in potato cakes.

Kitchen Resource Management and Waste Sorting

In the Practical Food Skills examination (half the marks of your final examination) you must show sustainable resource management:

• Energy conservation: Keep lids on saucepans to trap heat, match the pot base to the correct hob ring size, and avoid switching the oven on too early.
• Water conservation: Wash fruit and vegetables in a basin rather than under a running tap, and steam vegetables using minimal water.
• Waste hierarchy: Deal with food waste in this order: reduce (buy and cook only what is needed), reuse (use leftovers, freeze extra portions, donate unopened surplus), then recycle (compost or brown bin).
• Bin sorting: Food scraps and vegetable peelings go into the brown bin or compost heap; clean, dry, and rinsed packaging goes in the recycling bin; only non-recyclable rubbish belongs in the general waste bin.

Key terms

Carbon Footprint

The total amount of greenhouse gases produced by growing, processing, transporting, cooking, and disposing of a food item.

Food Miles

The total distance food travels from where it is grown or manufactured to the consumer.

Fairtrade

A certification scheme guaranteeing fair wages, safe working conditions, and community funds for producers in developing countries.

Organic Food

Food produced without artificial chemical fertilisers, pesticides, or routine antibiotics, protecting soil, water, and animal welfare.

Avoidable Food Waste

Edible food thrown away before being consumed, such as stale bread, soured milk, or uneaten leftovers.

Stock Rotation (FIFO)

The practice of placing newer food items behind older ones (First In, First Out) so older items are consumed before their expiry dates.

Use-By Date

A strict food safety deadline for highly perishable items; food must never be eaten after this date due to the risk of food poisoning.

Best-Before Date

A date mark relating to food quality. Food stored correctly is usually still safe after this date, but its texture, flavour or appearance may decline.