Have you ever noticed that the flavor of leftover beef changes considerably from the prior day? I certainly have. When you refrigerate beef the flavor will change; and it is a very noticeable change. This change in refrigerated beef can happen within only a few hours too.
The reason is the beef fat. Fat is the main source of flavor in beef, and it is what produces the change in taste. The off flavor of the beef is caused by the heating of the meat, which causes oxidation of the fats.
So, know that if you do have a lot of left over beef, it is not going to taste anywhere near as delicious as it did on the first day. Want more beef facts? Did you know that: Cooler Meat is Tougher Meat?
