How much in one packet of au jus mix?

A typical packet of au jus mix usually weighs about 1.5 to 2 ounces (42 to 56 grams) and typically yields around 2 cups of prepared au jus when mixed with water. The specific amount may vary by brand, so it's best to check the packaging for precise details. Au jus mix is designed to provide a flavorful sauce for meats, especially roast beef.