New Invention Seeks to End ‘Peanut Butter Knuckles’

New Invention Seeks to End ‘Peanut Butter Knuckles’, 100wapi.com, July 30, 2013. The men behind Jar With A Twist, from NC State University, have developed a threaded container that pushes the stubborn dregs of peanut butter out of the bottom of the jar, much like a deodorant tube or a push-pop. Steve Smith, undergraduate studies, featured.