Rolls of brown paper wrapping paper are used in many industries. You can pack something with it, but you can also use it as a filling in boxes that need to be transported and not completely full.
Packing rolls of Ersatz paper
Packaging rolls of Ersatz paper are grease repellent and are often used to pack cheese, fish and meat. Because the paper is on a roll, you can easily determine how much you use and you are not stuck to the sizes of pre-cut sheets.