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Rolling boil of water in an electric kettle. Boiling or ebullition is the rapid phase transition from liquid to gas or vapour; the reverse of boiling is condensation.Boiling occurs when a liquid is heated to its boiling point, so that the vapour pressure of the liquid is equal to the pressure exerted on the liquid by the surrounding atmosphere.
At sea level, water boils at 100 °C (212 °F). For every 152.4-metre (500 ft) increase in elevation, water's boiling point is lowered by approximately 1°F. At 2,438.4 metres (8,000 ft) in elevation, water boils at just 92 °C (198 °F). Boiling as a cooking method must be adjusted or alternatives applied.
This is an accepted version of this page This is the latest accepted revision, reviewed on 30 January 2025. Preparing food using heat This article is about the preparation of food specifically via heat. For a general outline, see Outline of food preparation. For varied styles of international food, see Cuisine. Not to be confused with Coking. A man cooking in a restaurant kitchen, Morocco ...
Boiling, steaming, and simmering are popular cooking methods that often require immersing food in water or its gaseous state, steam. [154] Water is also used for dishwashing. Water also plays many critical roles within the field of food science. Solutes such as salts and sugars found in water affect the physical properties of water.
Chewing or mastication is the process by which food is crushed and ground by the teeth. It is the first step in the process of digestion, allowing a greater surface area for digestive enzymes to break down the foods. During the mastication process, the food is positioned by the cheek and tongue between the teeth for grinding.
This is the most basic way of harvesting juice, and all kinds of dishes are common. This requires that the ingredients have been cooked, the pot is opened and turned on high heat, as far as possible to boil the water, let the sauce concentrate, before the ingredients must turn off the fire. 2. Harvesting juice with starch syrup
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Boiled eggs are a popular breakfast food around the world. Besides a boiling water immersion, there are a few different methods to make boiled eggs. Eggs can also be cooked below the boiling temperature, i.e. coddling, or they can be steamed. The egg timer was named for commonly being used to time the boiling of eggs.