from the sounds of the rest of the discussion - ice cream is a core enough part of DQ's business that they just have a normal machine that does it, where McDona

from the sounds of the rest of the discussion - ice cream is a core enough part of DQ's business that they just have a normal machine that does it, where McDonald's uses a whiz-bang machine that can freeze the ice cream on-demand. So the McDonald's machine never has waste if they don't sell ice cream all night, but it also is a maintenance nightmare.