1975 By Editor Posted April 12, 2019 In 19752019-04-122019-04-12https://demaco.com/update/wp-content/uploads/2019/04/demaco-logo.pngDemacohttps://demaco.com/update/wp-content/uploads/2019/04/generation-i-high-speed-premixer_12206655193_l-2.jpg200px200px 0 Ignatius Bontempi invents and patents the first high-speed sanitary premixer. Editor