Please, please, please make sure you do your research into 3D printing and food safe usages. The vast majority of printed products are NOT food safe, and must be coated with a food safe epoxy. The grooves that come naturally with any 3D printing style, because of the layer by layer build process, even as small as 25 microns (0.025mm) are big enough for bacteria to get caught and begin reproducing and surviving. That being said: your process of design and iteration is fantastic! And the overall product idea is great as well! Definitely something I can see myself using! Great work!
