The sentence "People probably don't want to eat genetically-engineered pizza off of toxic plates" contains several problems to me:
1) genetically-engineered pizza? pizza that made out of genetically-engineered food?
2) "off of toxic plates"? The pizza is served in toxic plates? Why has used "off of" but not just "off"?
Context:
You can print out a fork or spoon with your MakerBot, but if you use ABS plastic, it is not BPA-free. Luckily, new filaments that are safer to put in your mouth are being created for this specific reason, but they aren't widely available yet. Many 3D printers have spaces where bacteria can easily grow if they aren't cleaned properly, as well. In order to more safely-produced 3D printed food and kitchenware, there may be a need for an FDA-approved machine.
People probably don't want to eat genetically-engineered pizza off of toxic plates.More:
http://www.newscientist.com/article/mg22329784.200-ethical-3d-printing-begins-with-plastic-waste-pickers.html#.U8kbh-OSxYA