Agitate

To agitate is to move or disturb a liquid or mixture by stirring, shaking, whisking, tossing or swirling. In cooking, agitation can distribute heat, blend ingredients, suspend particles, develop an emulsion or prevent food from sticking. The appropriate amount depends on the technique and desired texture.

Examples in the kitchen

• Swirling a pan: moving butter or a sauce to promote even heating and emulsification.
• Stirring polenta: moving the mixture to reduce sticking and distribute heat.
• Whisking a sauce: incorporating ingredients and creating a stable emulsion.
• Tossing vegetables: distributing fat and seasoning evenly during sautéing.

When agitation should be limited

Some preparations require gentle handling. Excessive agitation can break delicate fish, damage vegetables, develop gluten in a tender pastry or make a stock cloudy by dispersing particles. Other techniques, such as whisking a vinaigrette or emulsifying a sauce, deliberately use vigorous movement.

Chef’s tip: Match the movement to the recipe. Stir, whisk, toss or swirl only as much as needed to achieve the intended texture and even cooking.

Key distinction: Agitation is the general action of moving a mixture; stirring, whisking, shaking and swirling are specific ways to do it.