Searing meat after sous vide cooking provides a desirable Maillard reaction, creating a flavorful crust and improving the overall texture and appearance. Sous vide alone doesn't achieve this surface browning.
Sous vide cooking involves immersing food in a precisely temperature-controlled water bath. This method excels at cooking the interior of the meat to the exact desired doneness. However, the relatively low temperatures used in sous vide (typically below 140°F/60°C) are insufficient to trigger the Maillard reaction, a chemical reaction between amino acids and reducing sugars that occurs at higher temperatures (above 285°F/140°C). The Maillard reaction is responsible for the browning and development of complex flavors on the surface of seared meat.
Therefore, searing after sous vide is crucial for:
Common searing methods include using a hot skillet (cast iron is ideal), a broiler, or a blowtorch. The key is to sear quickly and at high heat to minimize overcooking the already perfectly cooked interior.
Before searing, thoroughly pat the meat dry with paper towels. Excess moisture will inhibit browning and result in steaming instead of searing. A dry surface is essential for achieving a good crust.