Hi All! Late to the party, but just stumbled on this post a few minutes ago, and wanted to be clear about the cups, they are Food safe, certified by the EU, produced in France. If anyone needs the certifications, or the name and contact info for the silicone cup manufacturer, or the designer, I can sure dig it up for you...it's in the files here somewhere!
As far silicone being safe, the very same stuff is used in baking ware, from cake pans to muffin tins, it's used in espresso machine seals, and in an a million different ways these days. I would challenge anyone to go to a standard kitchen ware store & find the food safe info, the NSF, the FDA certifications on any of it.
We bought these because when we're out in the garden, or traveling, or in the shop, it's really nice to have a cup that is unbreakable. Completely, totally unbreakable. You can run these over with a truck. You can drop them from the top of your house to the concrete below, and they will only bounce....they will spill the coffee if you have delayed in drinking it though! They are very light, flexible, can be stuffed into VERY small space - if you're a hiker, or backpacker, you know how every ounce counts, and these don't add much weight!
