Boiled beans

On this Wikipedia the language links are at the top of the page across from the article title. There are two main types of boiling: nucleate boiling boiled beans small bubbles of vapour form at discrete points, and critical heat flux boiling where the boiling surface is heated above a certain critical temperature and a film of vapor forms on the surface. Boiling water is used as a method of making it potable by killing microbes and viruses that may be present.

Boiling water is also used in several cooking methods including boiling, steaming, and poaching. The lowest heat flux seen in boiling is only sufficient to cause , where the warmer fluid rises due to its slightly higher density. This condition occurs only when the superheat is very low, meaning that the hot surface near the fluid is nearly the same temperature as the boiling point. A video showing water being boiled. In general, the number of nucleation sites is increased by an increasing surface temperature.