What's the name of this trendy cooking technique?

Once the domain of professional chefs and fancy restaurants only, sous vide cooking has finally hit the mainstream. In the sous vide method, food is put into a vacuum-sealed bag and then immersed in temperature-controlled water. Food is heated slowly and steadily only until it reaches the temperature of the water, ensuring a perfectly cooked result. Searing and other direct heat methods require a lot more guesswork, sometimes resulting in kitchen disasters like a burnt surface and raw interior.

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