Food Packaging

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Total cards: 24•Content version: v4•Public deck•Updated: 8/1/2026

Card preview (24)

Front (Question)

___ packaging is in direct contact with food and needs to be foodsafe; ____ packaging can have printed material and can be made of recyclable material

Back (Answer)

primary; secondary

Front (Question)

what are the primary functions of food packaging?

Back (Answer)

preservation, protect against physical damage, chemicals, bio contamination; aid distribution, create sales appeal

Front (Question)

chips are surrounded by ___ not normal air, to prevent ____

Back (Answer)

nitrogen; oxidation

Front (Question)

examples of diff food pack materials?

Back (Answer)

paper, glass, metal, plastics, laminates, wood, cloth, wax, edible containers

Front (Question)

what are examples of edible containers?

Back (Answer)

ice cream cones, cabbage leaves, bread, taco bowl

Front (Question)

OTR stands for ____, WVTR is ____

Back (Answer)

oxygen transmission rate; water vapor transmission rate

Front (Question)

examples of mechanical properties of food packaging

Back (Answer)

film strength, weight

Front (Question)

recycling plastics follow the ___ coding system

Back (Answer)

resin

Front (Question)

how many types of recycling plastics?

Back (Answer)

#10

Front (Question)

what are the 7 types of recycling plastics?

Back (Answer)

1) PETE/PET 2) HDPE 3) PVC 4)LDPE 5) PP 6) PS 7) other (mixed)

#11

Front (Question)

what is PETE? What is it used for?

Back (Answer)

polyethylene terephthalate; used in soft drink/juice containers

#12

Front (Question)

what does HDPE stand for? What is it used for?

Back (Answer)

High density polyethylene; milk jugs

#13

Front (Question)

what does PVC stand for? what is it used for?

Back (Answer)

polyvinyl chloride; packaging films like saran wrap

#14

Front (Question)

____ is used for solar water disinfection

Back (Answer)

PET

#15

Front (Question)

what is LDPE? What is it used for?

Back (Answer)

low density PE; grocery bags

#16

Front (Question)

what is pp? what is it used for?

Back (Answer)

polypropylene; yogurt containers

#17

Front (Question)

what is PS? What used for?

Back (Answer)

polystyrene; cups and plates

#18

Front (Question)

____ not good for barrier properties but is good for short term; it has lots of air in container to help with shape and support; can taste parts per billion of this

Back (Answer)

polystyrene

#19

Front (Question)

what is MAP?

Back (Answer)

modified atmosphere packaging

#20

Front (Question)

why do fresh meats include high oxygen?

Back (Answer)

to maintain bloom of myoglobin pigment

#21

Front (Question)

plant hormone causing ripening

Back (Answer)

ethylene

#22

Front (Question)

MAP for fruit and veg need consider:

Back (Answer)

humidity, o2, co2, ethylene, temp

#23

Front (Question)

why fruit and veg need some oxygen?

Back (Answer)

don’t want switch to anaerobic resp/fermentation (pickling)

#24

Front (Question)

how is controlled atm (CA) diff from MAP?

Back (Answer)

it actively monitors and changes atm around product