Death by boiling is a method of execution in which a person is killed by being immersed in a boiling liquid such as water or oil. While not as common as other methods of execution, boiling to death has been used in many parts of Europe and Asia.
Executions of this type were often carried out using a large vessel such as a cauldron or a sealed kettle that was filled with a liquid such as water, oil, tar, tallow or even molten lead. Depending on the intended cruelty, the victim was either immersed before the liquid was heated or plunged, usually head first, into a boiling liquid. In some cases, the executioner could control the speed of demise by raising or lowering the victim by means of a hook and pulley system.
An alternative method was to use a large shallow receptacle that contained oil, tallow or pitch. The victim, who was then partially immersed in the liquid, was fried to death.
Death in these cases was by severe scalding caused by the hot liquids (water or oil).  Immersion burns would form on the arms, torso and legs. Prolonged scalding would result in fifth-degree burns of the skin. The epidermis and the dermis are destroyed leading to the complete breakdown of subcutaneous fat. Eventually the heat would expose muscle leading to breaches in major arteries and veins.
Due to the rarity of such an event, these types of executions usually attracted larger crowds than for a hanging or beheading due to their novelty. In the Dutch town of Deventer, the kettle that was used for boiling criminals to death can still be seen.
In England, statute 22 passed in 1531 by Henry VIII, made boiling a legal form of capital punishment. It began to be used for murderers who used poisons after the Bishop of Rochester's cook gave a number of people poisoned porridge, resulting in two deaths in February 1531.  It was employed again in 1542 for a woman who used poison. The act was repealed in 1547.
In 16th century Japan, the semi-legendary Japanese bandit Ishikawa Goemon was boiled alive in a large iron kettle-shaped bathtub.  His public execution, which might have included his entire family, was done after he failed to kill warlord Toyotomi Hideyoshi.
The government of Uzbekistan under the regime of Islom Karimov have boiled a number of political dissidents. The British ambassador to Uzbekistan, Craig Murray, explains in his memoir Murder in Samarkand that he obtained photos of the corpse of Muzafar Avazov and sent them to a forensic pathologist in Britain, who concluded that the visible injuries were consistent with a living person having been immersed in boiling water.
Depictions in Western media
Early reports of cannibals from islands in the Pacific, such as Fiji or Papua New Guinea, killing western Christian missionaries were mistakenly assumed to involve some form of boiling alive. This became a fertile ground for film makers and especially cartoonists, whose cliché depiction of tourist or missionaries sitting restrained in a large cauldron above a wood fire and surrounded by bone-nosed tribes-people were staple of popular magazines and film for decades. Examples include the dream sequence in the movie Bagdad Café and Dan Piraro's depiction of Martha Stewart. In Kyle Onstott's novel "Mandingo", a slave, who slept with and impregnated his master's wife, was killed in a tub of boiling water.
- Geoffrey Abbott, Execution blunders, pages 21–22.
- Scald and Burn Care, Public Education City of Rochester Hills Accessed February 24, 2008
- Weigh-House, Deventer
- Kesselring, K.J. (Sept, 2001), A Draft of the 1531 'Acte for Poysoning', The English Historical Review Vol. 116, No. 468, pp. 894-899
- Newlin, George (2000), Understanding Great expectations, Westport, Conn.: Greenwood Press, pp. 136, ISBN 9780313299407, OCLC 41488673
- Leslie, Frank, Frank Leslie, and Ellery Sedgwick. 1876. Frank Leslie's popular monthly. [New York]: Frank Leslie Pub. House. p 343
- Goemonburo - Goemon-style bath
- Amnesty International - Concerns in Europe and Central Asia July to December 2003
- Boiling as a Form of Capital Punishment (see subtitle half way down page)
- Human Rights Watch: Torture Worldwide: Uzbekistan
cs:Poprava uvařením et:Surnukskeetmine fr:Mort par ébouillantage ko:팽형 it:Bollitura a morte he:הרתחה למוות nl:Levend koken ja:釜茹で no:Henrettelse ved ihjelkoking ru:Сварение в кипятке fi:Kuoliaaksi keittäminen sv:Kokning (avrättningsmetod) zh:烹刑