2, in general, the time to cook beef with the size of the beef, the use of pots and pans, for example, large pieces of beef stewed in ordinary pots and pans, then the time will be a little longer, more than 30 minutes, if you use a pressure cooker stewing, then in less than 30 minutes can be cooked.
3, beef is a better source of a variety of minerals, sodium, potassium, phosphorus, sulfur, chlorine and other elements of the content of more, iron, copper, manganese, zinc, manganese, cobalt and other elements are also richer, but the calcium content is extremely low. Soluble minerals (such as potassium and sodium) are easily lost with the juices during the freezing and thawing of the meat: minerals such as iron, copper and zinc are present in combination with proteins, and are not easily subject to loss during processing.