Food, plants, animals and biological goods.
Declare all food, plant and animal goods, equipment used with animals, biological materials, soils and sand to Quarantine on arrival. If you don't, you could be given an on-the-spot fine or face prosecution.
http://www.daff.gov.au/aqis/travel/entering-australia/cant-take
The following is not a complete list of items that you must declare on arrival. In many cases, items you declare will be returned to you after inspection. Some may be allowed in if accompanied by an import permit (issued by AQIS prior to arrival), or with treatment in Australia to make them safe (fees and charges apply). Alternatively, you can drop them in quarantine bins at the airport.
Food commercially prepared, cooked and raw food and ingredients
dried fruit and vegetables*
instant noodles and rice*
packaged meals*
herbs and spices*
herbal and traditional medicines, remedies, tonics and herbal teas*
snack foods*
biscuits, cakes and confectionery*
black tea, coffee and other beverages
infant formula (must be accompanying a child)
airline food/snacks.
Dairy and egg product
dairy products (fresh and powdered) including milk, cheese and 'non–dairy' creamers
cheese—must be commercially prepared and packaged and originate from countries free from foot and mouth disease
airline food containing dairy including milk, yoghurt and sandwiches containing cheese
all whole, dried and powdered eggs, and egg products that contain more than 10 per cent egg as an ingredient, such as mayonnaise
homemade egg products including noodles and pasta that are not commercially manufactured.
Animal products
all uncanned meat including fresh, dried, frozen, cooked, smoked, salted or preserved—from all animal species
sausages, salami and sliced meats
airline food including sandwiches containing meat
fish and other seafood products*
pet food—including canned products and rawhide chews
rawhide articles and handicrafts including drums.ds and nuts
cereal grains, popping corn, raw nuts, pine cones, birdseed, unidentified seeds, some commercially packaged seeds, and ornaments including seeds.sh fruit or vegetables
all fresh and frozen fruit and vegetables.