What does very red beef and a bitter taste mean?

Very red beef can indicate that the meat has been cooked too quickly and/or at too low of a temperature. This can result in undercooked meat, which can be dangerous to consume. Beef should be cooked to a safe internal temperature of 145°F (63°C) to kill harmful bacteria.

A bitter taste in beef can also be a sign of contamination. Beef that has been spoiled or contaminated with bacteria will often have a sour or bitter taste. It is important to discard any beef that has an off taste or smell.

If you are concerned about the safety of your beef, it is best to discard it and purchase fresh meat. You can also contact your local health department to report any concerns about food safety.