What is the duty free alcohol limit into Australia?

hallo,

according the the customs requirements you can bring

250 cigarettes, or 250 grams of cigars or tobacco products for each passenger aged 18 years or over. One opened packet containing 25 cigarettes or less is also allowed.

You can pool your duty free concessions if you are a family traveling together.

http://www.customs.gov.au/site/page.cfm?u=4352