Butcher's twine is made of 100 percent biodegradable cotton and is approved to use in cooking. It is used to tie up meat dishes such as poultry and roasts to help them cook more evenly. Using butcher's twine is not complicated, though it may take a try or two before you get the hang of it. BT2R-C is a polished butcher twine, product comes wound on tubes, 5 rolls per bag and 10 bags per case