What is sustainability?

1. SUSTAINABILITY
GCSE FOOD TECHNOLOGY

2. TODAY'S OBJECTIVES
 MUST have a good understanding of the 6 R’s
of sustainability.
SHOULD be able to identify the environmental
issues with existing food products.
COULD recognise how to modify the product
to improve its environmental impact.
GCSE FOOD TECHNOLOGY

3. WHAT DOES
SUSTAINABILITY
MEAN?
GCSE FOOD TECHNOLOGY

4. GCSE FOOD TECHNOLOGY
Reduce
Reuse
Recycle
Refuse
Repair
Rethink

5. GCSE FOOD TECHNOLOGY
Reduce
Reuse
Recycle
Refuse
Repair
Rethink
 Cut down the amount of material and energy
you use as much as you can – food example?
 Use a product to make something else with all
or parts of it
 Reprocess a material or product and make
something else
 Design in a way that considers people and the
environment
 When a product breaks down or doesn't work
properly, try to fix it
 Do we make too many products? Design in a
way that considers people and the environment

6. GCSE FOOD TECHNOLOGY
REDUCE
 Reduce the effects on health by using
balanced recipes, low in fat, salt and
sugar.
 Reduction in the use of processed foods.
 Reduce energy in methods of cooking.
 Transportation of food and materials. Eco
Footprint.
 Ways of reducing waste food.
 Reduce the use of pesticides. Organic
food production.
 Buy products with little or no
packaging/bags.

7. GCSE FOOD TECHNOLOGY
REUSE
 Products that can be reused for either the
same or a new purpose.
 Reuse of leftover ingredients to make other
food products.
Fish cakes: fish,
potato, breadcrumbs
Bread and Butter
Pudding: Dry slices
of bread.
Pasta Bake: Leftover
vegetables, meat.
Wraps: Leftover
meat and vegetables

8. GCSE FOOD TECHNOLOGY
RECYCLE
 The choice of packaging materials.
 Recycling of tins, plastic, glass, card and
paper.
 Composting.

9. GCSE FOOD TECHNOLOGY
REFUSE
 Issues relating to sustainable design in
packaging – too much packaging?
 Refuse high fat, salt and sugar foods.
 Refuse packaging such as?
Over packaging Corn based bio-
plastic packaging
biodegradable
form of plastic
made from
vegetable starch

10. GCSE FOOD TECHNOLOGY
RETHINK
 Rethink the average UK high-fat diet.
 Examine the impact of food products on
health.
 Rethink the use of healthy ingredients in
creative designs.

11. GCSE FOOD TECHNOLOGY
Nutrient Why we need it Too much /not enough?
Protein To build and repair muscle Too much: Is used for energy or stored as fat
Fats To keep us warm and to help absorb
some vitamins
Can cause obesity, stroke or coronary heart
disease
Carbohydrates To give us fuel for energy, keep us going.
2 types, sugars and starches.
Can cause obesity if not burned off because they
are stored as fat. Too much sugar can also cause
dental decay
Vitamins A = Healthy Eyes and Bones
B = Releases energy from food
C = Helps us absorb iron
D= Strong teeth and bones
Not enough can cause
A: vision problems, dry skin
B: beri beri
C: scurvy / slow healing
D: rickets / osteoporosis
Minerals Calcium – strong bones / teeth & blood
Iron – transports oxygen round body
Calcium: Rickets, weak teeth, muscle and nerve
problems
Iron: Anaemia
 Repair electrical equipment
 The function of nutrients in repairing and
maintaining a healthy body.
REPAIR

12. YOUR TASK
 Choose a food
product
 or think of your
own
Complete the
environmental
consideration sheet
Stuck...use the AQA
book to help pg. 92
GCSE FOOD TECHNOLOGY

13. WHICH IS THE
MOST
IMPORTANT
...
WHY?
GCSE FOOD TECHNOLOGY
Reduce
Reuse
Recycle
Refuse
Repair
Rethink
PLENARY

14. ON A PIECE OF PAPER
WRITE DOWN
YOUR OPINION ON
GENETICALLY MODIFIED
FOODS
GCSE FOOD TECHNOLOGY
WHAT ARE SOME
OF YOUR
OPINIONS?

15. GCSE FOOD TECHNOLOGY
RE-CAP
 There are currently huge pressures on the global food system. The
demand for food is increasing with the growing global population (which is
expected to increase from 7 billion today to over 9 billion by 2050)
 Manufactures, Consumers and Products could be more
sustainable but how?
Manufacturer
• Use recyclable/biodegradable
packaging
• Include recycling logos
• Use less packaging
• Remove unnecessary packaging
altogether
• Make packaging thinner
Consumer
• Buy products packed
sustainably
• Recycle food and packaging
• Buy in bulk not individually
• Use bag for life
• Re-use left over's eg compost
• Repair equipment

16. Disadvantages
• Higher manufacture/farming
costs
• Expensive produce for
customers
GCSE FOOD TECHNOLOGY
FARM ASSURED FOODS
 The foods which have a red tractor symbol have met specific standards for
homegrown foods. The produce will have been farmed and packed in the
UK and will have normally met strict hygiene, safety and welfare standards
at all stages of production.
 Example foods: Beef, Chicken, Strawberries
Eggs, Pork, duck
Advantages
• Improve quality of life for
animals
• Produce can traced back to
origin easily
• Experts at each stage of the
process

17. GCSE FOOD TECHNOLOGY
FAIR TRADE FOODS
 Fair trade foods are products which have a guarantee that the
workers involved in the production get a fair price for the
products and have a reasonable standard of living in the
developing world. This not only applies to farmers but their
families and benefits the local environment and sustainability.
 Example Products: Ben & Jerrys ice cream, Kit Kat, Dairy Milk,
Nescafe coffee
Disadvantages
• Higher prices for fair trade
products compared to non fair
trade products
• Not the same variety as non fair
trade products.
Advantages
• The supplier receives better
money
• Involves greater environmental
protection
• Peace of mind for the consumer

18. GCSE FOOD TECHNOLOGY
GENETICALLY MODIFIED FOODS
Disadvantages
• Ethical issues with tampering
with the genetic structure
• Possible human side affects
• Could lead to GM of humans
• Not considered safe
at present
Advantages
• Makes crops resistant to disease
• Improves the nutritional quality of
food
• Increases the quantity of food
grown from the same land.
• Could cure famine/blindness
 These are foods which have had their genes
altered to improve the characteristics. This is
done by combining or adding genes from one
food to another.
 Selective breeding or grafting is a form of GM
 https://www.youtube.com/watch?v=j872YzVeXFs

19. TASK 1
Complete the GM
Foods page in your
booklet .
GCSE FOOD TECHNOLOGY

20. TASK 2
You are to complete a sensory
evaluation of two different types
of tomatoes (normal and GM) in
your booklets.
Think about now you want a carrot
to taste, smell, feel and look (TATA)
and write in some describing
words (2 for each sense).
GCSE FOOD TECHNOLOGY
VS
NORMAL GM
Ripeness
Colour
Sweetness
Aroma
Texture
Flavour
Moist
Fruity
Shape
Softness

21. GCSE FOOD TECHNOLOGY
 These are foods which have been grown without the use of
chemicals, fertilisers or pesticides
 Example foods: fruit, vegetables, meat, milk, eggs, flour & baby food
Advantages
• Prevents certain diseases
• No fertilisers therefore no
CO2/pollution released
• Reduces risk of pest epidemic
• More authentic food
products/better tasting
products
• Better effect on animal
reproduction
Disadvantages
• High labour input required
• Expensive compared to normal
food products
• Food does not last as long as
there are no preservatives
• Limited selection available

22. GCSE FOOD TECHNOLOGY
NANO FOODS
 All products are made from atoms which are one millionth of a millimetre.
The properties of food products depend upon how theses atoms are
arranged. Therefore if these atoms are rearranged the food product can be
manipulated.
 The texture of foods can be changed such as spreadability and stability
(nanoemulsions) improve with nano-sized crystals and liquids for better
low fat foods.
 Nano-enhanced bacteria keep oxygen sensitive foods fresher.
Advantages
• Improve packaging by making
them stronger and lighter
• Reduce sugar, fat and salt
without reducing taste
• Improve shelf life of foods
drastically
Disadvantages
• Possible human side effects
• Ethical concerns with modifying
products which are ingested
• High costs
• New technology

23. GCSE FOOD TECHNOLOGY
FOOD MILES
 The concern for our environment continues to grow and as the biggest
contributor to greenhouse gasses is the production of CO₂ any method of
minimising the output is constructive particularly as transport forms a
significant portion of the worlds CO₂ emissions.
 The distance food travels from where it is grown to the location of the
retailer is known as food miles.
 The demand for food is
consistent all year round
therefore food is sourced from
all around the world.
 It is generally cheaper to source
food from other countries
 Food miles can be reduced by
buying locally and selecting
seasonal produce.

24. TASK 3
You are to complete a sensory
evaluation of two different types
of carrots (normal and organic) in
your booklets.
Think about now you want a carrot
to taste, smell, feel and look (TATA)
and write in some describing
words (2 for each sense).
GCSE FOOD TECHNOLOGY
VS
NORMAL ORGANIC
Ripeness
Colour
Sweetness
Aroma
Texture
Flavour
Moist
Fruity
Shape
Softness

25. EXTENSION :
Collect a sustainability exam question
sheet from the front and try and
complete – these are all past exam
questions!
GCSE FOOD TECHNOLOGY

26. GCSE FOOD TECHNOLOGY
PLENARY
ON THE BACK OF THE PIECE
OF PAPER WRITE DOWN
YOUR NEW OPINION ON
GENETICALLY MODIFIED
FOODS
RESULTS OF TASTE TEST