Fast food giants like McDonald's have long relied on flash-frozen beef patties as their go-to ingredient. It's pretty easy to see why: They're affordable and are simple to transport across vast ...

Although it might be more economical for a fast-food chain to use frozen beef patties to make its burgers since frozen beef can be stored for longer, fresh beef often provides a better taste and ...

McDonald's announced a major change to the Quarter Pounder on Thursday: By next year, it will contain fresh - rather than frozen - beef patties. Beef patties have been ruled out as the source of ...

The Colorado Department of Agriculture said that all subsamples from multiple lots of McDonald's brand fresh and frozen beef patties had tested negative for E. coli, adding that it had completed ...

REUTERS/Brendan McDermid The Colorado Department of Agriculture said that all subsamples from multiple lots of McDonald’s brand fresh and frozen beef patties had tested negative for E.

The Colorado Department of Agriculture said that all subsamples from multiple lots of McDonald’s brand fresh and frozen beef patties had tested negative for E. coli, adding that it had completed beef ...

(Reuters) - McDonald’s on Sunday ruled out beef patties as a source of the E. coli outbreak linked to Quarter Pounder hamburgers, which has killed at least one person and sickened nearly 75 others.