* Environment Friendly Products * No Artificial Fibers * Endures up to 484º/250º C * Will not Affect the Taste of Food * Landfill Safe & Biodegradable * Microwave Safe Just like If You Care Cheesecloth, If You Care Cooking Twine is made with unbleached cotton. It is ideal for forming roasts, trussing poultry, curing meats and more. And since it contains no artificial fibers or toxic chemicals, it will not affect the taste or safety of your food.