[1] Pizza by the slice is typically pre-baked and pre-sliced, and is characteristically kept warm under heat lamps.
Selling pizza by the slice offers an economic and speedy dining option to a purchaser while optimizing profits for the seller, as the total value of a pie's slices typically is considerably more than selling a whole pie.
[1] The price of pizza slices is also typically significantly less than the cost of a whole pie.
[9][10] Pizza by the slice is also manufactured frozen, and is sometimes packaged in individual microwavable portions.
The dough for pizza al taglio is sometimes parbaked ahead of time, allowing sauce and various toppings to be added later and the pie finished in the oven when needed.