Why do they not use other shapes , such as a sphere or cuboid , why is it just restricted to cylinder?
In: Economics
Durability, ease of manufacture, functional use.
Every corner or line requires a seam, which is a potential point of failure if the container is dropped, struck, or otherwise put under pressure. So a shape like a cuboid would have four more points of failure than a cylinder.
Spherical containers are much more difficult to manufacture than cylinders. They also don’t stack or otherwise store in stable arrangements on shelves without special shelving. *Opening* a spherical container is also fairly non-intuitive; additional modifications would be required to make the means of opening obvious and easy.
A cylinder hits the sweet spot: it’s very easy to consistently manufacture. It has only two points of failure: the top & bottom. It stores, stacks, and can be packaged easily without special adjustments. Opening it is fairly intuitive, as there is a clear “top” or “bottom”.
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