Why is Pre-packaged Ground Beef Bright Red on the OUTSIDE and Sometimes Dull, Greyish-Brown Inside?

Do you have any idea, at all, of what you are talking about- you know, those things that you grew up knowing, those things everybody knows ALL ABOUT; or a least likes to BELIEVE they do?

It seems that even the Green Man,Vancouver Sun, appreciates some of the copyrighted material; originally from my cook book, that I have also posted on my blogs. For example: Why is  ground beef red on the outside but grey on the inside?


1385.ground beef Why is ground beef red on the outside but grey on the inside?


Why is Pre-packaged Ground Beef bright red on the OUTSIDE and sometimes dull, greyish-brown inside?
OR
Bright Red, Versus Grey, Brown or Purple Meat.

Notice  all the fail proof precautions; as demonstrated in the picture below , to insure that there is absolutely no way that anything can fall out of the meat hopper; or that any contaminates can be blown;  or otherwise, fall, in. 
CLICK ON IMAGE SOURCE, FOR MORE INFORMATION




          The bright red colour of ground beef is very often used by consumers as a selection factor when purchasing hamburger, and ground beef but, in reality, that bright red,“moist”, appearance (often, indicates the injection of "flavour" or "nutritional" additives-including pink slime and or additional liquid content) is not a reliable indication of freshness; has very little to do with quality and a dark gray-purple colour may not necessarily be a bad thing.
All warm blooded animals contain a pigment called myoglobin, in meat tissues. This pigment is normally a dark greyish purple but when it comes in contact with oxygen it oxidises  becomes ox-myoglobin and turns a bright red colour.
Meats that are vacuum-packed have not been exposed to oxygen long enough to turn red. Freshly ground beef will also have a purplish colour
          It is for that eye-pleasing bright red colouration that the fresh ground beef sold at the supermarket is packaged using a clear film that is oxygen permeable. The oxygen goes through the film and allows the meat to turn that pretty red colour many people associate with fresh beef. This is why I do NOT recommend freezing meat in store packaging (also promotes freezer burn).
          Colouring can also indicate the presence of "PINK SLIME" additives, or spoilage. If your package of ground beef is grayish all the way through and does not turn red when exposed to air for fifteen minutes or so, it is most likely spoiled or starting to spoil.
           It can be downright scary; leaving a slice of supposedly fresh supermarket ground beef on a plate and exposed to oxygen in this way. Often the beef will take on a sort of marbled look that is not the appearance of freshly ground beef.  While long exposure, or, too much oxygen, will case it to darken; fresh, uncooked, meat should never be brown in colour and it should never appear marbled or mottled. That soft, sticky,brown stuff, (you know, the kind of stuff that at one time we stepped in on occasion but we never ate)the kind of stuff for which Canadian; and especially Alberta; "made" meats are becoming known ;has long been known to contain E-coli and bacterial pathogens.


You just finished eating a hamburger. Guess how many beef animals may have contributed to that one 4-ounce beef patty?
"Clayton and Belk (1998) determined the number of cattle contributing muscle and/or fat tissue to a single patty, concluding that in a single 4-ounce ground beef patty the fewest number of animals, on average, that contributed tissue to a patty was 55 and the greatest number, on average, was 1,082."


        This is a clear indication that the ground beef did not all come from the same source, nor was it all ground at the same time. Usually, but not always, your nose will tell you right off the bat, as spoiled ground beef will usually smell sour. It will also feel tacky to the touch. Do not take any chances with spoiled meat. When in doubt throw it out.
Safety First      
        All beef products are susceptible to bacteria contamination such as E.Coli, Salmonella and Listeria. Proper handling and cooking procedures are essential to prevent food borne illness. Other bacteria can contribute to accelerated spoilage. Ground beef is especially vulnerable since it begins with so many pieces of meat, possibly from several different countries and sanitary conditions (free trade-global market), exposed to multiple handling procedures and equipment surfaces. Grinding and exposes even more meat surface to potential bacteria as does the excessive moisture in plastic wrapped, boxed (the new trend-somewhat, facilitates long distance shipping) meats.
©Al (Alex, Alexander) D Girvan 1995-98-2012 all rights reserved

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