# CrustaStun

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{{Short description|Device to administer a lethal electric shock to shellfish before cooking}}
The '''CrustaStun''' is a device designed to administer a lethal electric shock to [shellfish](/source/shellfish) (such as [lobsters](/source/lobsters), [crabs](/source/crabs), and [crayfish](/source/crayfish)) before cooking. This is marketed as a more humane alternative to boiling a live shellfish. The CrustaStun design consists of a stainless-steel box approximately the size of a domestic [microwave oven](/source/microwave_oven) containing a tray with a wet sponge and an electrode. The shellfish is placed in the box and, upon the lid's closure, the wet sponge conducts the current which electrocutes the animal with a 120 [volt](/source/volt), 2–5 [ampere](/source/ampere) current. It is claimed that the CrustaStun renders the shellfish unconscious in 0.3 seconds and kills the animal in 5 to 10 seconds, compared to claims that it takes 3 minutes to kill a lobster via boiling and 4.5 minutes for a crab.<ref>{{cite news|url=https://www.independent.co.uk/life-style/food-and-drink/news/ill-have-my-lobster-electrocuted-please-1824925.html|title=I'll have my lobster electrocuted, please|author=McSmith, A.|publisher=The Independent (Newspaper)|accessdate=June 14, 2013|location=London|date=November 21, 2009}}</ref> However, the source for the claim that it takes a crab several minutes to die from boiling states that death actually occurs in about 10 seconds. Movements detected after this period were attributed to heat's effect on the muscles or escape of air from the [branchial chambers](/source/Branchial_chamber), not voluntary movements.<ref>Baker, John R. [https://plymsea.ac.uk/id/eprint/1639/1/Experiments_on_the_humane_killing_of_crabs.pdf "Experiments on the humane killing of crabs."] ''Journal of the Marine Biological Association of the United Kingdom'' 34.1 (1955): 15-24.</ref>

The inventor, Simon Buckhaven, spent two years developing the device with scientists from the [University of Bristol](/source/University_of_Bristol). The device was manufactured in [England](/source/England) at an estimated cost of £2,500 in 2009{{Citation needed|date=March 2026}}

==See also==
* [Pain in crustaceans](/source/Pain_in_crustaceans)

==References==
{{Reflist|colwidth=30em}}

==Further reading==
*[https://web.archive.org/web/20181022141734/http://crustastun.com:80/ Original producer's website (archived of)]
*[https://www.mitchellcooper.co.uk/appliances/crustastun-12749 Mitchell & Cooper, current producer's product listing]
*[https://news.bbc.co.uk/2/hi/uk_news/4097798.stm BBC article on the device and its inventor]

Category:Animal welfare
Category:Euthanasia
Category:Goods manufactured in England
Category:Kitchenware brands

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Adapted from the Wikipedia article [CrustaStun](https://en.wikipedia.org/wiki/CrustaStun) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/CrustaStun?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.