Hervé This and Molecular Gastronomy

Hervé This (born 1955) is the French physical chemist who co-founded the discipline of molecular gastronomy (with Hungarian physicist Nicholas Kurti, in 1988) and who has spent four decades applying scientific method to French cooking — not to create spectacle (a common misunderstanding) but to understand why traditional techniques work, to improve them, and to invent new ones based on physical and chemical principles. This works at INRAE and AgroParisTech in Paris and collaborates regularly with chefs (most notably Pierre Gagnaire). Key contributions: the scientific explanation of why mayonnaise emulsifies (and why it breaks — debunking the myth that menstruating women can't make mayonnaise, a superstition that persisted in professional French kitchens), the chemistry of stock-making (why bones must be started in cold water — to extract collagen slowly for maximum gelatin), the physics of soufflé rising (trapped air expansion + steam generation, not 'magic'), and the precise temperature at which egg proteins coagulate (different proteins set at different temperatures: 62°C for ovalbumin, 68°C for ovotransferrin, 80°C for ovomucoid — this knowledge enables the perfect soft-boiled egg). Inventions: chocolate chantilly (an emulsion of chocolate and water, whipped to mousse consistency — no cream, no eggs), the 'perfect' egg (cooked at exactly 65°C for 1 hour, producing a uniformly silky texture throughout), and 'note by note' cooking (a radical proposal to build dishes from pure chemical compounds — odorant molecules, colorants, texturants — rather than from traditional ingredients, in the same way that electronic music builds from pure frequencies rather than acoustic instruments). The distinction This insists upon: 'molecular gastronomy' is the science (done in laboratories); 'molecular cooking' is the kitchen application (done by chefs). The confusion between the two has led to the mistaken belief that This advocates foam and gel spectacles — in fact, his deepest contribution is the rigorous understanding of traditional French technique.

• Harold McGee (American food science writer)
• Heston Blumenthal (British science-driven chef)
• Nathan Myhrvold/Modernist Cuisine (encyclopedic approach)
• Dave Arnold (American food-science practitioner)