Our filters are made from abaca pulp, cellulose and sealing fiber, guaranteeing true-flavor filtering. They are chlorine-free bleached and biodegradable. Without glue or any other type of binding agent. The expanding base of the filter provides the tea leaves enough room for their flavor to fully unfold. Instructions on use are available in 4 languages at the back of the sachet (& box). The sachet has an euroslot hanger which gives greater flexibility presenting the product to the customer.