How can a machine extrude a round pasta shape with a hole in the middle (e.g penne), without the middle metal part blocking the hole falling away

Question

How can a round shape be made, when the middle part of the metal creating the hole needs to be attached to something, which would create a gap in the shape

In: 479

Answer 1

If you split pasta dough you can join it back by forcing it together under pressure. This is what the pasta extruders does. Pasta dough is forced under very high pressure through a metal die. The die does have support structures supporting the center core and the dough have to go around these structures. However due to the high pressure the pasta dough will join back together on the other side. You usually do not even see the join in the finished product.

The same technique is not invented for pasta though. Extrusions are heavily used in lots of industrial applications to make things like plastic and metal components. And a lot of these do have similar cores as pasta shapes. For example pipes.

Answer 2

If you split pasta dough you can join it back by forcing it together under pressure. This is what the pasta extruders does. Pasta dough is forced under very high pressure through a metal die. The die does have support structures supporting the center core and the dough have to go around these structures. However due to the high pressure the pasta dough will join back together on the other side. You usually do not even see the join in the finished product.

The same technique is not invented for pasta though. Extrusions are heavily used in lots of industrial applications to make things like plastic and metal components. And a lot of these do have similar cores as pasta shapes. For example pipes.