Abstract: An oven and method of processing products such as fish and shellfish are disclosed. The oven may include a chamber that may be heated to ultra-high temperatures, such as within a range of about 600-2500° F. (315-1371° C.). A burner may heat the chamber from an exterior of the chamber such that the chamber may provide a uniform radiant heat inside the chamber. The products may be carried through the chamber on a conveyor belt to heat a surface of the products to brown and denature the surface, destroy microorganisms, and place grill marks on the products. The products may then be packaged in a microwavable package or boil-in-the-bag film such that the products may be cooked at a later time in a microwave oven or boiling water bath.