Abstract: Provided is a grill apparatus having a foldable heat generating unit and a grill unit, in which a plurality of heat sources are folded on each other or unfolded from each other, to radiate heat downward from the plurality of heat sources, and cook food through the plurality of heat sources, thereby controlling the amount and the time of cooking the food according to user's necessity by folding or unfolding the plurality of heat sources on each other or from each other. The grill apparatus includes: the foldable grill unit on which a food is put and cooked, in which a plurality of grill plates can be mutually unfolded or folded; and the foldable heat generating unit disposed on a support pillar disposed vertically from the grill unit and in which a plurality of heaters can be mutually unfolded or folded while applying infrared rays to the grill unit.

Abstract: Provided is a carbonization time point management service providing system when food stuff such as fish or meat (or fish-meat stuff) cooked, the system receives, from a cooking management service providing server, fish-meat detecting information including a cooking time from a cooking start point in time of fish-meat stuff to a carbonization time point at which the fish-meat stuff starts to be carbonized, generates a cooking completion acquisition signal in accordance with an end timing of the cooking time, and transmits a cooking completion indication signal to cooking management dedicated application content, so that the cooking completion indication signal is externally displayed, thereby enabling real-time confirmation of a cooking process of fish-meat stuff which is placed on a heating device even in the case of performing the other work at the remote place during cooking of the fish-meat stuff, to improve convenience when cooking the fish-meat stuff.