How many milliliters in a beer jug aust?

There's no standard "beer jug" size, and the term "aust" doesn't refer to a standard unit of measurement.

To answer your question, I need more information.

Please tell me:

* What is the specific brand or type of beer jug? (e.g., a growler, a stein, a pitcher, a specific brand's jug).

* What is the volume of the jug in ounces, liters, or another unit?

Once I have this information, I can calculate the volume in milliliters for you.