Vanilla pulp used in papermaking, in which the lignin is broken down using sulfites or sulfates. However, vanillin is only one of 171 identified aromatic components of real vanilla fruits. The orchid species "Leptotes bicolor" is used as a natural vanilla replacement in Paraguay and southern Brazil. In 1996 the US Food and Drug Administration cautioned that some vanilla products sold in Mexico were made from the cheaper tonka bean which as well as vanillin also contains the toxin coumarin. They advised consumers to always check the ingredients label and avoid suspicously cheap products. In the United States, castoreum, the exudate
Renfe Feve Spain's north coast, and has connected the cities of San Sebastián, Bilbao, Santander, Oviedo and Ferrol to Leon since 1982. Operated as a holiday service, the carriages of the train are furnished with bedrooms, lounges and restaurants and voyages typically last eight days and seven nights. FEVE also operated "normal" regional (express and stopping) services (in sections) from Ferrol to Hendaya (some sections operated now by regional operators). One of the longest regular (non-tourist) FEVE service operated between Leon and Bilbao (a journey of some 7 hours). FEVE also operated a range of "cercanías" or commuter services. The main commuter