This is Why McDonald's Ice Cream Machines Are Always Broken

This is Why McDonald's Ice Cream Machines Are Always Broken We now have the answer to one of life's long mysteries and it's because the ice cream machines take forever to clean, taking up to four hours to sanitize, according to Reader's Digest. This also has to be done each day! McDonald's announced last year that they'd be replacing their old machines with ones that are easier to maintain but they're taking a long time to install in restaurants. Looks like you'll have to curtail those cravings a bit longer folks.