Paper sacks are usually made out of kraft paper, a type of paper that is produced by the Kraft process. Kraft paper is made from wood pulp that has been treated with chemicals to make it stronger and more durable. Paper sacks are used to packaging a variety of products, including food, animal feed, and cement. They are also often used as garbage bags. Paper sacks are made in a variety of sizes, depending on their intended use. Food sacks are typically smaller than those used for cement or garbage. There are a number of companies that manufacture paper sacks in Australia. Some of the more popular brands include Amcor, Linpac, and Orora.