Given the [google search found] density of dry pasta, the volume and the maxweight of shipping containers, it seems dry pasta is strangely close to the density

Given the [google search found] density of dry pasta, the volume and the maxweight of shipping containers, it seems dry pasta is strangely close to the density shipping containers are made for; so you could fill one with flat pasta - if I have it right, a full container of flat paste is about 17100kg where as the max is 20000. So yes, shaped pasta is a limit on shipping.