@nprofile1q... Yeah, I definitely would not want to use 3D printed parts for actual food/liquid contact applications. Too hard to clean. Too many crevices for bugs to hide. 3D printing is not a good choice in general if you have strong opinions about surface finish.

For my application, thermals are a bit of a worry. Wort in a mash can get up to 170 F on the high end. PLA melts around 280 F ish? It might sag a bit at lower temps than that, but I think there's enough of a spread there that I should be ok? We'll have to see if I need to switch to a different polymer after some live heat tests. =)