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Water boiling at 99.3 °C (210.8 °F) at 215 m (705 ft) elevation. The boiling point of a substance is the temperature at which the vapor pressure of a liquid equals the pressure surrounding the liquid [1] [2] and the liquid changes into a vapor.
Simmering is a food preparation technique by which foods are cooked in hot liquids kept just below the boiling point of water [1] (lower than 100 °C or 212 °F) and above poaching temperature (higher than 71–80 °C or 160–176 °F). To create a steady simmer, a liquid is brought to a boil, then its heat source is reduced to a lower ...
At this temperature, bacteria are killed, enzymes in the milk are destroyed, and many of the proteins are denatured. [2] Since most milk sold today is pasteurized , which accomplishes the first two goals, milk is typically scalded to increase its temperature, or to change the consistency or other cooking interactions by the denaturing of proteins.
Low-temperature cooking is a cooking technique that uses temperatures in the range of about 60 to 90 °C (140 to 194 °F) [1] for a prolonged time to cook food. Low-temperature cooking methods include sous vide cooking, slow cooking using a slow cooker, cooking in a normal oven which has a minimal setting of about 70 °C (158 °F), and using a combi steamer providing exact temperature control.
The stove in a traditional Russian loghouse sustains "varying cooking temperatures based on the placement of the food inside the oven". [8] Today, baked milk is produced on an industrial scale. Like scalded milk, it is free of bacteria and enzymes and can be stored safely at room temperature for up to forty hours. Home-made baked milk is used ...
This reduces the boiling point of the liquid to be evaporated, thereby reducing or eliminating the need for heat in both the boiling and condensation processes. There are other advantages, such as the ability to distill liquids with high boiling points and avoiding decomposition of substances that are heat sensitive.
In thermodynamics, superheating (sometimes referred to as boiling retardation, or boiling delay) is the phenomenon in which a liquid is heated to a temperature higher than its boiling point, without boiling. This is a so-called metastable state or metastate, where boiling might occur at any time, induced by external or internal effects.
A pressure cooker can be used to compensate for lower atmospheric pressure at high elevations. The boiling point of water drops by approximately 1 °C per every 294 metres of altitude (see: High-altitude cooking), causing the boiling point of water to be significantly below the 100 °C (212 °F) at standard pressure. This is problematic because ...