Sweating is a gentle cooking technique in which vegetables or aromatics are softened in a small amount of fat over low to moderate heat, usually without developing significant colour. The ingredients release moisture and soften, allowing their flavour to develop while keeping the preparation pale. The French culinary term is suer.
Onions, leeks, celery, fennel and other aromatics are often sweated to form the flavour base for soups, risotto, white sauces, braises and some stocks. The technique develops sweetness and aroma without the stronger roasted flavours produced by browning.
Sweating uses gentler heat and aims to soften ingredients without significant colour. Sautéing generally uses higher heat and is intended to cook quickly, often with browning. The same ingredient can be sweated at the beginning of a recipe and sautéed or browned in another preparation.
A lid traps steam and helps vegetables soften in their own moisture. The pan should still be monitored so the ingredients do not scorch or begin to brown when the liquid evaporates.
Chef’s tip: Use low heat and a suitable pan, and avoid overcrowding. If the vegetables begin to colour, reduce the heat or add a small amount of liquid if the recipe allows.
Key distinction: Sweating softens aromatics gently without significant browning; it is not the same as caramelizing onions or sautéing at high heat.
Video demonstration: Watch the sweating technique.
This term is one of hundreds covered in depth across OCS courses, learning paths, and 1-on-1 coaching with Chef Eric.
