Is there a page on eden fantasys which explains how the safety ratings are decided? I know for each material you can see the details, but I was hoping to just have a better general understanding of what the numbers mean.
I tend to get a bit paranoid about things in my body, but I don't want to miss out on toys because I'm afraid of 6 but not 7 as a rating. Maybe I would want that to be my "cut-of" but I don't really know.
It would be nice to know what general attributes are associated with what number. (ex I know porous materials have lower safety ratings).
Knowing the criteria would help me save time from looking up each material individually.