Cafe Filters from Perfect Pod are made from specially designed filter paper that ensures bitter coffee oils and sediments don't end up in your coffee cup. Paper filters are 100% biodegradable and lessen the environmental impact of traditional plastic k-cups. Saves up to 80% over the cost of pre-filled single-serve capsules. Brews a smoother, more balanced cup of coffee. Compatible with almost all Reusable K-cups. Makes cleanup a breeze.