{"id":7405,"date":"2026-03-11T17:41:37","date_gmt":"2026-03-11T16:41:37","guid":{"rendered":"https:\/\/museumnachtleiden.nl\/programma\/piss-soap\/"},"modified":"2026-03-11T17:41:37","modified_gmt":"2026-03-11T16:41:37","slug":"piss-soap","status":"publish","type":"programma","link":"https:\/\/museumnachtleiden.nl\/en\/program\/piss-soap\/","title":{"rendered":"Piss Soap"},"content":{"rendered":"<p>Jan Steen&#8217;s painting De Piskijker depicts an age-old medical<br \/>\npractice. The doctor could tell what was wrong by looking at<br \/>\nthe urine. But urine is not only useful for medical diagnoses;<br \/>\nit can also be used to make soap. For his project Piss Soap,<br \/>\nartist Arthur Guilleminot makes soap bars from human urine,<br \/>\nwood ash, and used cooking oil. With this, he asks you to<br \/>\nthink about our throwaway society and how we perceive<br \/>\ndisgust in our Western culture. In exchange for your urine,<br \/>\nyou get to take home a ready-made soap bar.<br \/>\nA jar to collect your urine will be provided.     <\/p>\n<p><img fetchpriority=\"high\" decoding=\"async\" class=\"aligncenter wp-image-7389 size-large\" src=\"https:\/\/museumnachtleiden.nl\/wp-content\/uploads\/2026\/03\/Foto_PissSoap_-Lakenhal-1-1024x683.jpg\" alt=\"\" width=\"1024\" height=\"683\" srcset=\"https:\/\/museumnachtleiden.nl\/wp-content\/uploads\/2026\/03\/Foto_PissSoap_-Lakenhal-1-1024x683.jpg 1024w, https:\/\/museumnachtleiden.nl\/wp-content\/uploads\/2026\/03\/Foto_PissSoap_-Lakenhal-1-300x200.jpg 300w, https:\/\/museumnachtleiden.nl\/wp-content\/uploads\/2026\/03\/Foto_PissSoap_-Lakenhal-1-768x512.jpg 768w, https:\/\/museumnachtleiden.nl\/wp-content\/uploads\/2026\/03\/Foto_PissSoap_-Lakenhal-1-1536x1024.jpg 1536w, https:\/\/museumnachtleiden.nl\/wp-content\/uploads\/2026\/03\/Foto_PissSoap_-Lakenhal-1-2048x1365.jpg 2048w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/> <em>Photographed by <\/em><i>Jeph Francissen<\/i><\/p>\n<p><img decoding=\"async\" class=\"aligncenter wp-image-7390 size-large\" src=\"https:\/\/museumnachtleiden.nl\/wp-content\/uploads\/2026\/03\/Foto_PissSoap_Lakenhal-2-1024x683.jpg\" alt=\"\" width=\"1024\" height=\"683\" srcset=\"https:\/\/museumnachtleiden.nl\/wp-content\/uploads\/2026\/03\/Foto_PissSoap_Lakenhal-2-1024x683.jpg 1024w, https:\/\/museumnachtleiden.nl\/wp-content\/uploads\/2026\/03\/Foto_PissSoap_Lakenhal-2-300x200.jpg 300w, https:\/\/museumnachtleiden.nl\/wp-content\/uploads\/2026\/03\/Foto_PissSoap_Lakenhal-2-768x512.jpg 768w, https:\/\/museumnachtleiden.nl\/wp-content\/uploads\/2026\/03\/Foto_PissSoap_Lakenhal-2-1536x1024.jpg 1536w, https:\/\/museumnachtleiden.nl\/wp-content\/uploads\/2026\/03\/Foto_PissSoap_Lakenhal-2-2048x1365.jpg 2048w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/> <em>Photographed by <\/em><i>Jeph Francissen<\/i><\/p>\n<p><img decoding=\"async\" class=\"aligncenter wp-image-7391 size-large\" src=\"https:\/\/museumnachtleiden.nl\/wp-content\/uploads\/2026\/03\/Foto_PissSoap_Lakenhal-3-1024x683.jpg\" alt=\"\" width=\"1024\" height=\"683\" srcset=\"https:\/\/museumnachtleiden.nl\/wp-content\/uploads\/2026\/03\/Foto_PissSoap_Lakenhal-3-1024x683.jpg 1024w, https:\/\/museumnachtleiden.nl\/wp-content\/uploads\/2026\/03\/Foto_PissSoap_Lakenhal-3-300x200.jpg 300w, https:\/\/museumnachtleiden.nl\/wp-content\/uploads\/2026\/03\/Foto_PissSoap_Lakenhal-3-768x512.jpg 768w, https:\/\/museumnachtleiden.nl\/wp-content\/uploads\/2026\/03\/Foto_PissSoap_Lakenhal-3-1536x1024.jpg 1536w, https:\/\/museumnachtleiden.nl\/wp-content\/uploads\/2026\/03\/Foto_PissSoap_Lakenhal-3-2048x1365.jpg 2048w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><em>Photographed by <\/em><i>Jeph Francissen<\/i><\/p>\n","protected":false},"featured_media":7399,"parent":0,"template":"","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"default","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}}},"class_list":["post-7405","programma","type-programma","status-publish","has-post-thumbnail","hentry"],"_links":{"self":[{"href":"https:\/\/museumnachtleiden.nl\/en\/wp-json\/wp\/v2\/programma\/7405","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/museumnachtleiden.nl\/en\/wp-json\/wp\/v2\/programma"}],"about":[{"href":"https:\/\/museumnachtleiden.nl\/en\/wp-json\/wp\/v2\/types\/programma"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/museumnachtleiden.nl\/en\/wp-json\/wp\/v2\/media\/7399"}],"wp:attachment":[{"href":"https:\/\/museumnachtleiden.nl\/en\/wp-json\/wp\/v2\/media?parent=7405"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}