I've seen many hundreds of sandwich making machines in my life, and I noticed that in the vast majority of them, there is a diagonal protrusion that makes sandwiches come up in triangular shapes.
This makes no sense to me, for the following reasons:
- Most packaged sliced bread is square, not triangular.
- Most grilled sandwich recipes don't call for triangular shapes
- You're forced to a triangular shape
- Non-square bread slices are difficult to use with this triangular shape
- The protrusion itself is much more difficult to clean than a simple flat iron.
Yet for some reason these sandwich makers are extremely common, to the point that flat makers are somewhat of a specialty item, therefore costing more.
I think I'm missing something here. Why do most sandwich makers use this triangular shape? What are the advantages of such a shape?