That's a lot of lint! Michigan is now the proud record holder of the world's largest ball of dryer lint. The Guinness World Record was set on Thursday, September 19, 2019 at Dryer Vent Wizard in Farmington Hills. The lint officially weighed in at a whopping 690 pounds. There was no previous record, but it needed to be a minimum of 99 pounds to qualify for Guinness.