The world’s most requested disposable Tea Filters All filters can be used without a holder. Some have an especially long fill-in-flap, which makes it easier to fill in your tea. The flap is also used to fix the filter at the rim of your tea pot by closing the lid. All our filters have a pleated bottom which expands as the tea leaves unfold for full their bodied flavor. Our tea filters are made of biodegradable cellulose and manila hemp. Our oxygen bleached paper is famous for its unique true-flavor filtering qualities.