2. To keep the product together, to contain it (i.e. So that it does not spill).
Some shapes cannot be easily packaged, for example, certain vegetables. However, there are methods of getting around this problem. Suppliers of canned vegetables such as carrots have developed a particular type of plant that yields carrots that are straight and smaller than the normal variety. These fit into cans. Some products such as fruit juices and sausages need to be contained in packages that hold them together and are sealed to prevent spillage and loss.