Dyce51 said:...When they make the briquetes they use a glue that contains traces of arsanic...
According to Kingsford, here's their ingredients...
wood char (heat source), mineral char (heat source), mineral carbon (heat source), limestone (uniform visual ashing), starch (binder), borax (press release), sodium nitrate (ignition aid), sawdust (ignition aid). The mixture and high compression forms the briquettes.