Star Tribune — August 2016

"In rural Senegal in West Africa, an enterprising woman named Aissatou Ly is earning an extra few bucks a day selling a tasty, nutritious ground-peanut paste dubbed "peanut butter" at a local market. That is thanks to a simple grinder that has cut her labor and increased her income markedly in a country where the per capita economic output is only about $2,500 annually...This is the recently improved version of the grinder, first developed years ago for small farmers and entrepreneurs in several African and Latin American countries by the retired science and business volunteers at Compatible Technology International (CTI) of St. Paul."...