Design
Electrical units generally consist of indented hot plates, clamped together around the sandwich similar in design to a waffle iron. Usually two sandwiches can be toasted at a time. The plates are heated by electrical coils inside the appliance. Usually the exterior is somewhat separate from the coils to ensure the outside of the unit does not get too hot. The plates often clamp tightly around the edge of the sandwich, sealing in the filling. The use of a special sandwich toaster seals the edges of the sandwich and may place a diagonal line across it, preventing the filling from spilling out.
Read more about this topic: Sandwich Toaster
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