Edible products are sold in plastic packages. After consumption, the remains must be preserved keeping aroma and freshness for next time. At home, we need something that could help in preserving product freshness, using the original packaging, avoiding wastes, and finally reduce environmental footprint. So I came up with this model, which seem to met all the requisites. It's strong enough to hold tight material, such plastic or laminated aluminum, it provide good sealing thanks to its design, and of course is reusable and scalable due to parametric design obtained by using openscad design tool.
The model is supportless, set infill to 20% min in order to keep the result strong enough. After printing eventually use a cutter to facilitate the movement of the joint.