20x20 Hemmed grade 90 cheesecloth. (grade 90 is the highest grade and best quality in cheesecloth.) This cheesecloth has a tight weave that will allow you to more easily filter and strain.100% unbleached organic cotton reusable cheesecloth. Sterilize in boiling water before using. To clean cheesecloth for reuse, rinse in cold water after use and hand wash with mild dish detergent. Can be machine washed - an extra rinse cycle is recommended to remove all soap residue.