It seems that the consensus among DIY forums is that the only safe caulk for dishwasher use is food grade/aquarium caulk. For my specific application, though, I need something less permanent than silicone, but, from what I can tell, a food grade latex caulk doesn't exist. I was looking at the SDS: http://www.dap.com/media/53192/00010009001english.pdf for the colored version of this: http://www.dap.com/dap-products-ph/kwik-seal-kitchen-bath-adhesive-caulk/ These are the ingredients that it lists: Limestone (50-75%) Diethylene glycol dibenzoate (2.5-10%) Titanium dioxide (0.1-1.0%) Quartz (0.1-1.0%) According to this: http://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfCFR/CFRSearch.cfm?fr=175.105 Diethylene glycol dibenzoate is approved for trace/edge exposure in aqueous foods. I'm looking at this list, and nothing is screaming out "don't use this near food." Am I missing something?