Sous vide was developed in France by chef Georges Pralus and food scientist Bruno Goussault in the 1970s, initially for foie gras preservation and later developed comprehensively for protein cookery. Modernist Cuisine was the first publication to make the scientific principles and practical parameters of sous vide accessible to a general professional audience.
Sous vide — "under vacuum" in French — is the technique of sealing food in airtight bags and cooking in a precisely temperature-controlled water bath. The control it provides — holding a protein at exactly 55°C for as long as desired — makes previously impossible textures repeatable. A chicken breast cooked sous vide at 63°C for 2 hours is categorically different from any chicken breast cooked by conventional means: the temperature is held in a range where myosin is denatured (tender) but actin is largely intact (moist), and held there long enough for collagen to convert to gelatin without the protein tightening.
**Temperature control:** The critical advantage of sous vide is that the water bath temperature equals the maximum internal temperature the food will reach. A 58°C bath cannot cook a steak past 58°C regardless of time. This makes overcooked protein impossible (within the bath — surface searing after the bath operates at much higher temperatures). **Time at temperature:** For safety, some pathogens require time at temperature to be eliminated — instantaneous pasteurisation requires higher temperatures: - Salmonella in chicken: 74°C instantaneous; or 63°C for 60 minutes - E. coli in beef: 71°C instantaneous; or 55°C for several hours - [VERIFY] Modernist Cuisine's specific pasteurisation time-temperature tables. **Texture by temperature:** - Chicken breast, 63°C: barely-set, extremely moist — the most juicy chicken texture achievable - Chicken breast, 67°C: firmer, still very moist — more recognisably "cooked" texture - Beef medium-rare, 54–56°C: edge-to-edge consistent pink — no gradient from rare centre to grey edges - Salmon, 47–50°C: translucent, almost raw appearance with a cooked texture — extraordinary - Pork belly, 74°C for 24 hours: maximum collagen conversion and extreme tenderness **The sear after sous vide:** Sous vide does not produce Maillard browning — the food emerges from the bath without surface colour. A brief, very high heat sear (cast iron or steel, maximum temperature, minimum time) develops the Maillard crust without penetrating the interior's precisely controlled temperature.
Modernist Cuisine Vol. 2–3