Little white spots on raw beef?

Muscle fibers (connective tissue): These appear as small, firm, white areas within the muscle. They are a natural part of the meat and are not harmful to eat. However, some people may find them unappetizing and choose to remove them before cooking.

Fat deposits: These appear as small, round or oval, white spots within the muscle. They are also a natural part of the meat and are not harmful to eat. However, some people may find them unappetizing and choose to trim them off before cooking.

Bruising: This can appear as small, dark red or purple spots on the surface of the meat. Bruising is caused by damage to the blood vessels during processing and is not harmful to eat. However, some people may find bruised meat to be unappetizing and choose to avoid it.

Mold: This appears as a white or colored fuzzy growth on the surface of the meat. Mold is a type of fungus that can grow on meat that has not been properly refrigerated or cooked. Mold is harmful to eat and should be discarded.

Spoilage: This can appear as a change in the color, smell, or texture of the meat. Spoiled meat may have a sour, rancid, or unpleasant odor and may be slimy to the touch. Spoiled meat is harmful to eat and should be discarded.

If you are unsure whether or not a piece of meat is safe to eat, it is best to err on the side of caution and discard it.