Looking to brew some loose leaf tea? Make some cold brew coffee? Nut milk? This reusable straining bag is made of GOTS certified organic cotton muslin fabric and is long lasting. Medium – 7 x 10 in: for wide mouth mason jars, perfect for larger batches of cold brew coffee. Large – 12 x 13 in: perfect for nut milk, yogurt, and larger straining jobs. Care instructions: after using, just flip the straining bag inside out, and rinse the contents off. Easy to care for, machine or hand wash them in COLD water and flat or line dry. They are made of unprocessed fabric, never washed or bleached, so they will shrink about 10% after the first wash. Comes package-fee. Made by Simple Ecology.