Make your Own Tea Bags! Biodegradable Chlorine-Free Fits in Any Cup or Teapot These ultra-thin tea bags bring out the premium flavor of loose leaf tea with ease and convenience. Great for tea on the go. These easy to fill, chemical-free, fully biodegradable natural tea filters are made with cellulose and manila hemp and can be used in any cup, mug, or pot to make your favorite loose tea or herbal infusion.