How to Tell if Frozen Beef is Bad?
When you buy ground beef, you must use it within one to two days. If you have purchased a cut of beef, it should be used within three to five days. While it is safe to keep the meat in the freezer for as long as you need it, beef that has been frozen for an extended period can become dry and brittle. The USDA recommends using beef within six to 12 months, but this can differ between manufacturers and types.
The most obvious way to tell if a piece of beef is wrong is by the color.