Lids for the 4 oz portion cups are made from cornstarch. These lids are 100% compostable, grease-resistant, and capable of securing the top of your hot and cold sauces and sides. Not only are these biodegradable lids eco-friendly but they are ideal for grab-and-go, takeout, and delivery. Show your customers your attention to detail when it comes to every aspect of your business’ food packaging.