652262 Mon Sep 14 10:43:29 -0700 2009 3 27 General Chowhounding Topics 0 5028813 http://tinyurl.com/mu5zcx interesting. Mon Sep 14 10:43:29 -0700 2009 65780 jujuthomas 1 5029008 While it doesn't sound particularily dangerous, this usda abstract leaves me with a little less confidence http://www.ars.usda.gov/research/publications/publications.htm?seq_no_115=239555 "Low energy CO2 laser beams etch the surface showing the contrasting underlying layer. These etched surfaces can promote water loss and potentially allow for entry of decay organisms. The long-term effects of laser labeling on produce during storage have not been addressed." Then they conclude it is safe, especially if the fruit is waxed. WHAT? Mon Sep 14 11:46:54 -0700 2009 5028813 10264 rworange 2 5029132 My reading of the abstract is that those topics had not yet been addressed, which was their rationale for undertaking the study. Regarding decay they found: "Laser labeled produce was stored at 10 °C and two relative humidities (i.e., 95% and 65% RH) for 5 weeks showed no increase in decay compared to control non-etched produce, suggesting that laser labeling does not facilitate decay." Water loss was a little greater but could be mitigated by waxing the surface after laser etching. Their conclusion that laser labeling is safe is supported by their findings. Mon Sep 14 12:27:41 -0700 2009 5029008 161386 kmcarr 1 5029878 i don't know that i like this. I like the less waste aspect of all those stickers put on, but, I don't know that i want to look down and see numbers when I am eating unless it is alphabet soup! Mon Sep 14 17:20:41 -0700 2009 5028813 1093873 Allice98