A cooking robot is a countertop machine that cooks a whole dish unattended. The user loads chopped ingredients, spices, oil and water into its containers and chooses a recipe in the app. The machine then adds each ingredient at the right moment, heats, stirs, and stops when the dish is done. It is also called an automatic cooking machine or a robotic chef.
Inside, it is a small kitchen run by a computer. A heating plate, usually induction, heats the pan to a set temperature. A motor turns a stirring arm. Each container sits over the pan and tips its contents in when the recipe says so. Pumps add oil and water in measured amounts. Each recipe is a program: a list of steps with times, temperatures and amounts. A microcontroller (MCU) runs the program and reads the sensor chips: a temperature sensor under the pan, and weighing sensors that check how much has been added. Some robots also have a camera above the pan. A small AI model that runs on the machine itself, called edge AI, looks at the onions and decides when they are golden, instead of only trusting the timer.
Imagine two friends who share a flat in Bengaluru and both get home late. At 8 a.m., one of them loads the containers for a dal tadka for four: chopped onions and tomatoes, boiled dal, cumin, chilli and turmeric, ghee and water. In the evening, from her office, she starts the recipe in the app. The robot heats the pan to 170 °C, adds 20 g of ghee, and then the cumin. Thirty seconds later, it adds the onions and stirs them for eight minutes, while its camera checks their colour. It adds the tomatoes and spices, then the dal and 300 ml of water, and simmers it all for ten minutes. After about 35 minutes, the app sends a message: "Dal ready". The robot keeps it warm until they arrive.
The robot connects to the maker's cloud through the home Wi-Fi, in the design explained in IoT architecture. The cloud holds the recipe library, and sends new recipes and firmware updates to the machine. It also receives data on how each recipe turned out, which the maker uses to improve the recipe.
Who buys one? Mostly busy working people, and families without a full-time cook. The robot still needs a person to buy, wash and chop the vegetables, and to clean the pan afterwards. What it saves is the time spent standing at the stove.
A cooking robot is different from a multicooker, such as an electric pressure cooker. A multicooker runs one heating programme on ingredients that are all added at the start. A cooking robot adds ingredients one by one, in order, and stirs them, as a cook does.