A warming cupboard is a heated cupboard in a professional kitchen where cooked food, plates, and serving dishes are kept warm before and during service. Held at temperatures that keep food safely hot — above 63°C for food, lower for plate-warming — it bridges the gap between cooking and plating in busy services, so nothing waits on a cold pass. Restaurants use it for resting meats, holding vegetables, and warming the plates that keep food hot at the table; banqueting operations depend on it entirely. It is for holding, not cooking: food left too long dries out and deteriorates, and the two-hour rule for hot holding still applies. Cleanliness matters as much as in any hot equipment.