Knowra Boiling Boiling Boiling is a cooking method in which food is heated while immersed in liquid at its boiling point. It transfers heat efficiently but can leach water-soluble compounds into the liquid.
Boiling point : The temperature at which a liquid’s vapor pressure equals the surrounding pressure and it changes to gas throughout. It sets the liquid temperature that drives this cooking method.
Blanching : A cooking technique that briefly boils food, often followed by rapid cooling. Brief boiling loosens skins, sets color, or prepares vegetables for freezing.
Starch gelatinization : The swelling and structural change of starch granules as they absorb water and heat. It softens starchy foods such as potatoes, rice, and pasta during cooking.
Steaming : A cooking method that heats food with water vapor rather than immersing it in liquid. It limits direct contact with water, reducing some nutrient losses.
Latent heat of vaporization : The energy required to convert a unit of liquid into gas without changing its temperature. It explains why vigorously boiling liquid stays near a steady temperature.
Parboiling : Partial cooking in boiling water before finishing by another method. It shortens later cooking and helps synchronize ingredients with different cooking times.
Protein denaturation : A change in a protein’s structure that can alter its solubility and function. Heat unfolds food proteins, changing texture in eggs, meat, and legumes.
Braising : A method that browns food before cooking it slowly with a small amount of liquid. It combines dry-heat browning with moist cooking instead of full immersion.
Convection : Heat transfer through the movement of fluids, such as liquids or gases. Circulating hot liquid carries heat around immersed food.
Pasta cooking : The preparation of pasta by hydrating and softening it, commonly in boiling water. Pasta is a familiar example of food cooked directly in boiling liquid.
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