I would refer to this: If we consider the small daily intake of honey, its contribution to the total daily intake of oxalic acid is negligible. Thus, from a nutritional point of view, oxalic acid should, like formic acid, also have a GRAS (Generally Recognized As Safe) status. Moreover, no significant residues are expected after oxalic acid treatments. Indeed, there is no risk of honey residues after all types of oxalic acid treatments. Jean-Daniel CharriƩre & Anton Imdorf (2002) Oxalic acid treatment by trickling against Varroa destructor: recommendations for use in central Europe and under temperate climate conditions, Bee World, 83:2, 51-60 *********************************************** The BEE-L mailing list is powered by L-Soft's renowned LISTSERV(R) list management software. For more information, go to: http://www.lsoft.com/LISTSERV-powered.html