functions of packaging and types of packaging materials avalible

Question 1

functions of packaging

Answer 1

CPIPC

Contains
Protects - from storage and distribution
Informs - consumers (allergens)
Preserves - long self life
Convienece - eg two minute noodles

Question 2

Types of materials available

Answer 2

HGM LSP - happy good mornings like summer picnics

Hard plastic
Glass
Metal

Lamination
Soft plastics
Paper + paperboard

Question 3

Glass - types of packaging materials available

Answer 3

• aseptically sterilised
• can be recycled and reused
• odourless and hygenic
• usually transparent (consumer can view)

Question 4

Hard or rigid plastic

Answer 4

• durable
• not always environmentally friendly

TYPES:

• polyethylene terephthalate (PET) –> strong and provides long term protection (soft drinks, water oils, sauces and spreads)
• high density polyethylene –> used for foods with a shorter shelf life eg milk
• Polypropylene (used for two minute noodles)

Question 5

Soft flexible plastic packaging

Answer 5

Any plastic material that is formed into a sheet or reel and is thin

• polyethylene (used for cling wrap)
• hight density polyethylene (used for cereal box liners)

Advantages:
- flexible are are relatively cheap to produce
- available in a variety of colours shapes and sizes
- is light and strong

Question 6

Metal - cans and foils

Answer 6

CANS:
- steel cans are coated with a thin layer of tin which acts as a barrier between the steel and the food to minimise the risk of the food reacting with the steel (inert)

FOILS:
- used for aluminum (trays for frozen pastry products, tubes for long life products such as condensed milk)

Question 7

Paper and cardboard

Answer 7

• used to make bags, wrappers, boxes and cartons
• is versatile and cost-effective
• Paper can also be grease-proof (butter)
• Fiberboard is used for protection of fragile foods such as eggs
• inert and does not react with flavour changes
• can be combined and sublimated with other materials (pringles)

Question 8

Laminations

Answer 8

involves combining two or more materials from separate reels stuck together with the use of adhesive or heat

retortable plastics - plastic is combined with adhesive

*shrinkable plastics - plastic must be able to shrink without packaging (vacuumed sealed bags)

tetrapacs - multilayered laminations or compostable packages