Tetrahedral carton of milk Although really usually shaped like a cuboid, It is far from uncommon to discover cartons lacking suitable angles and straight edges, as in squrounds utilized for ice product. Moreover, The straightforward design sheds water very easily and presents more attic space than most other roof styles. https://dairycartonsustainability.fashion.blog/2025/04/09/eco-conscious-innovation-with-water-in-carton-packaging/