With no waxes, and only 0.6% food grade glue to make the straw, this meets the required standards of EN13432 that glue must be less than 1%. As a paper straw is made up of natural cellulose fibres it can be universally considered compostable and biodegradable. We have lab tests results meeting a PASS for Council of Europe Resolution AP (2002) test for Heavy Metals and Chemicals (list can be provided) and also to FDA standards. Our paper straws are made in a factory holding BSCI certification, and are made to the highest standard including UV pasteurized before final packing. Our Paper straws hold up in all beverages, but do not quite last as long in a high acidic juice or smoothie.