--- description: Fallon took a taste test title: Watch Bill Gates and Jimmy Fallon Hang Out and Drink Poop Water Together image: https://static.time.com/v3/assets/bltea6093859af6183b/blt1a4c1a4440b9daca/69877b4a8e0601595b459dba/screen-shot-2015-01-22-at-11-10-07-am.png?branch=production&width=3840&quality=75&auto=webp&crop=16:9 ---  * [Newsfeed](/tag/time-section-newsfeed/) ## Newsfeed Update your preferences in [Account Settings](/account/preferences/) Close # Watch Bill Gates and Jimmy Fallon Hang Out and Drink Poop Water Together by [Samantha Grossman](/author/samantha-grossman/) ## Samantha Grossman Update your preferences in [Account Settings](/account/preferences/) Close Jan 22, 2015 4:59 PM CUT  by [Samantha Grossman](/author/samantha-grossman/) ## Samantha Grossman Update your preferences in [Account Settings](/account/preferences/) Close Jan 22, 2015 4:59 PM CUT Bill Gates stopped by _The Tonight Show_ Wednesday evening to talk about the Omniprocessor, a machine that aims to help sanitation issues in third world countries by turning human waste into drinking water — as well as electricity and clean ash. Gates recently[ promoted](http://time.com/3656199/bill-gates-drinks-water-poop/ "undefined") the machine, which his foundation has helped fund, and shared a video of himself testing the water on his blog. So naturally, the billionaire philanthropist decided to trick Fallon into tasting some of this “poop water” too. He sets up a taste test with two seemingly identical glasses of water and then invites Fallon to choose whichever one he wants. And then things get interesting. **MORE:** [Watch Bill Gates Drink Water That Had Been Poop Just Moments Before](http://time.com/3656199/bill-gates-drinks-water-poop/ "undefined") ```json [{"@context":"https://schema.org","@type":"NewsArticle","@id":"https://time.com/3678451/bill-gates-jimmy-fallon-poop-water/","mainEntityOfPage":{"@type":"WebPage","@id":"https://time.com/3678451/bill-gates-jimmy-fallon-poop-water/"},"headline":"Watch Bill Gates and Jimmy Fallon Hang Out and Drink Poop Water Together","datePublished":"2015-01-22T16:59:21.000Z","dateModified":"2026-04-13T07:16:10.905Z","description":"NBC host took a taste test","url":"https://time.com/3678451/bill-gates-jimmy-fallon-poop-water/","keywords":["Newsfeed","Television"],"thumbnailUrl":"https://static.time.com/v3/assets/bltea6093859af6183b/blt1a4c1a4440b9daca/69877b4a8e0601595b459dba/screen-shot-2015-01-22-at-11-10-07-am.png?branch=production&width=1200&quality=75&auto=webp&crop=1200:675&height=675","author":[{"@type":"Person","name":"Samantha Grossman","jobTitle":null,"url":"https://time.com/author/samantha-grossman/"}],"articleSection":"","image":[{"@type":"ImageObject","url":"https://static.time.com/v3/assets/bltea6093859af6183b/blt1a4c1a4440b9daca/69877b4a8e0601595b459dba/screen-shot-2015-01-22-at-11-10-07-am.png?branch=production&width=1200&quality=75&auto=webp&crop=1200:675&height=675","width":1200,"height":675,"headline":"Screen Shot 2015-01-22 at 11.10.07 AM","caption":"","creditText":"","representativeOfPage":true}],"publisher":{"@type":"Organization","name":"Time","url":"https://time.com/","logo":{"@type":"ImageObject","url":"https://time.com/images/logo.png","width":528,"height":156},"foundingDate":"March 3, 1923","sameAs":["https://www.facebook.com/time","https://www.instagram.com/time/?hl=en","https://twitter.com/time","https://www.pinterest.com/timemagazine"]}},{"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"item":{"@id":"/tag/time-section-newsfeed/","name":"Newsfeed"}},{"@type":"ListItem","position":2,"item":{"@id":"https://time.com/3678451/bill-gates-jimmy-fallon-poop-water/","name":"Watch Bill Gates and Jimmy Fallon Hang Out and Drink Poop Water Together"}}]}] ```