Canadian Meat Inspection: World Class Safety

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Canadian Meat Inspection: World Class Safety Canadian consumers want to be sure the food they eat is safe and wholesome. Extensive meat inspection programs, along with residue testing, are in place to ensure the safety of meat and meat products. Imported products must also meet these safety standards. The inspection stamp shown indicates the primal cut has been inspected by meat inspectors with the Canadian Food Inspection Agency. Canada has a meat inspection system second to none in the world. Under the Canadian Food Inspection Agency s inspection program, veterinarians and trained meat inspectors examine every animal and every side of beef before and after processing. They then compare the beef to a strict set of standards to ensure that it is healthy and wholesome. The inspector checks for animals with diseases and if there are signs of recent drug injections. This rigorous inspection procedure ensures consumers end up with wholesome foods. What happens if the standards aren t met? If the animal or carcass is suspected of being sub-standard, it is held for further testing. If it is confirmed tha the animal is sub-standard, it is used for INEDIBLE beef by-products or is condemned. For more information on inedible beef by-products, see pages 1-17 to 1-18. What about medications, vaccinations and hormones used in raising beef? All drugs used for livestock medications and vaccinations must undergo thorough testing by the Bureau of Veterinary Drugs and Health Canada before any substance can be licensed for use. Any of these drugs that might remain in meat are called residue. High standards are set so that there are no residues or miniscule residue levels in the animal when it is processed. Consequently, medications to animals are not a health problem for meat. Additionally, all carcasses are subject to random residue testing for antibiotics, pesticides, hormones and industrial pollutants. In 2004/2005, random testing results from beef showed excellent compliance with the standards set for antibiotics, hormones, and heavy metals. Student Learning Guide 1-10

...Canadian meat inspection Why are these items used in raising beef? Antibiotics and Vaccinations Animals are similar to people, in that they too can get sick. Antibiotics are used for preventative purposes and to treat the sick animals. Each rancher must follow strict guidelines when using medications in animals. One of the guidelines states that the animal cannot be processed for a certain amount of time following the use of an antibiotic or vaccination. This is to make sure that the medication has passed out of the body. This way there is no medication residue or miniscule residue levels in the meat. Hormones Estrogen implants may be placed in calves ears to help produce leaner and faster growing beef. This may bring the cost of production down by 10-15%. Estrogen implantation in beef livestock is NOT A HEALTH HAZARD for humans. Both men and women continuously produce estrogen in much greater quantities than that contained in a serving of estrogen-implanted beef. For example men produce 136,000 nanograms of estrogen daily and non-pregnant women produce 192,000 to 1,192,000 nanograms of estrogen daily. Other foods have HIGHER estrogen than beef (See Table 1-2). Table 1-2: Estrogen Content in some Common Foods Food Amount of Food Amount of Estrogen (nanogram)* Non-implanted beef 100 g 1.5 Implanted beef 100 g 2.2 Milk 250 ml 35.9 Cabbage, fresh, grated 325 ml 2,381 Soybean oil 15 ml 28,773 * Note: A nanogram is one billionth of a gram, which can be compared to one blade of grass in an entire football field. Student Learning Guide 1-11

...Canadian meat inspection cont'd Why is fresh meat so red? Do they add dyes? Many consumers mistakenly believe that fresh beef is dyed to keep the bright red colour. It is ILLEGAL to add colouring, additives, or preservatives to fresh beef. Fresh beef is bright red because of a naturally occurring blood compound called oxymyoglobin that is formed in the presence of oxygen. Clear plastic wrap is used in meat packaging so the right amount of oxygen is available to keep the bright red colour. If the meat is deprived of oxygen, it will change colour. That is why raw ground beef may be a bright red on the outside, and darker on the inside. The inside has not been exposed to oxygen like the outside. Thus, darker meat is not always an indication of older meat. Student Learning Guide 1-12

Making the Grade: Canadian Beef Grading Once beef has been inspected and deemed safe, it receives a federal or provincial inspection stamp. The packer-processors then have the choice of having the Canadian Beef Grading Agency grade their meat. A carcase grade and yield will determine the initial value and appropriate use of the meat in the food industry. The GRADE (see pages 1-14 to 1-15) is based on factors that affect eating quality. The YIELD (see page 1-16) is directly related to the quantity of lean meats that is usable. Marbling is an important part of beef. It not only determines the grade of beef, but more importantly to the consumer, it affects the flavour and juiciness of the beef. Marbling is the visible fat streaks within the lean meat. Thus, the more marbling within the lean of the beef, the more juicy the beef is. It is a major criterion in the present beef grading system. Student Learning Guide 1-13

Beef Grades Canada A (or higher) (stamped in red ink on the carcass) Canada Prime, AAA, AA, and A are the best quality of beef. Characteristics include: A youthful animal Grain of the meat is fine and muscle is firm Fat on the meat must be white and firm Lean is a bright red colour HINT: the more As in the grade name, the more marbling fat there is in the meat. That means a juicier, more tender and more flavourful piece of meat! 95% of all Ablerta beef is graded Canada A or higher. Canada Prime beef is the highest grade and usually available in fine dining restaraunts. Canada B (stamped in blue ink on the carcass) Characteristics include: Youthful animal Medium dark in colour Moderately firm texture Slightly coarse meat Less marbling than Canada A Fat is slightly yellow Remember that these grades are still safe to eat because they have the inspection stamp. They aren t Canada A because there isn t enough fat, or it isn t white enough, or the meat lacks the desired muscling or colour. One percent of all Alberta beef is Canada B. Grade B 1 B 2 B 3 B 4 Characteristic No marbling or <2 mm exterior fat Fat has yellow colour and may be soft Medium to poor muscling Meat colour is too dark Student Learning Guide 1-14

...beef grades cont'd Canada D and E (stamped in brown ink on the carcass) These are mainly older animals that are used primarily for ground beef or processed meats like sausages or lunchmeats. These carcasses are generally marketed as ungraded product. Canada D is mainly from mature cows. Less than five per cent of Canada s graded beef is Canada D. Canada E is mainly from bulls. Less than one per cent of Canada s graded beef is Canada E. Student Learning Guide 1-15

Beef Yields Parts of meat Carcasses are comprised of four main parts: 1. Meat or muscle tissue 2. Bone 3. Connective tissue 4. Fat To indicate how much usable meat is available, (only the Canada A or higher) carcasses are assessed to a lean meat yield class. This is done by the Canadian Beef Grading Agency. Yield is determined by measuring the exterior fat thickness and the length and width of the rib-eye muscle. Each carcass will be sliced between the 12th and 13th rib to drop the front quarter down. The grader will check and measure the fat covering. Why between the 12th and 13th rib? Research has shown a direct link between the amount of fat and the amount of lean, usable meat at this place on the carcass and the rest of the carcass. There are three classes of yield: Canada 1 59% or more of lean, usable meat CANAD A 1 Canada 2 54-58% of lean, usable meat CANAD A 2 Canada 3 53% or less of lean, usable meat CANAD A 3 Canada is world famous for its consistent production of quality and high yielding carcasses. Student Learning Guide 1-16

Benefits of Beef By-Products The industry uses approximately 95% of the carcass. If the typical grade A carcass only yields 59% of meat, what happens to the rest of the carcass? A carcass is a lot more than steaks, roast beef or hamburger (part of the 59%). Around 36% is used to make edible, inedible and pharmaceutical beef by-products. Edible Beef By-products are products that can be consumed. The majority of edible beef byproducts contain gelatin. Gelatin is made from cartilage, tendons and bones. Gelatin may be found in: Hard cheese Jello Canned meats Ice cream Gummi Bears Marshmallows Mayonnaise Gum Yogourt Variety meats are edible organs and glands of a beef animal, including: heart, tongue, liver, kidney, tripe (stomach walls), and testicles (Rocky Mountain or Prairie Oysters). Variety meats are edible by-products. Inedible Beef By-products Beef by-products provide a way to use everything and create products that we use every day. Here are examples of some products made from inedible by-products: From the hide Leather boots Leather luggage Leather shoes Student Learning Guide 1-17

...benefits of beef by-products cont'd From the fat Deodorants Fabric softeners Plastics Shaving cream Detergent Floor wax Shampoo Candles Crayons From the bones Toothpaste Bone china From leftover meat portions Pet foods From entrails Violin strings Pharmaceutical Beef By-Products The medical world also relies on the by-products from cattle to produce a number of medications and treatments that make a difference in people s lives every day. Prior to the 1980s, people with diabetes relied totally on insulin supplies extracted from beef and pork pancreases. By-products from cattle also assist in the treatment of the following: anemia, allergies, parathyroid deficiencies, respiratory diseases, jaundice, rheumatoid arthritis and leukemia. Student Learning Guide 1-18

Tender Meat: A Perspective from Ranchers & Processors There are many factors that affect the tenderness of beef and therefore, the eating quality. Cooking methods can often enhance tenderness and improve eating quality. 1. Connective Tissue A piece of meat can be divided into muscle fibres. Around the muscle fibres are connective tissue. The muscle fibres look like a handful of dry spaghetti with several elastic bands (connective tissue) interwoven and holding it all together. There are two main types of connective tissue: Collagen: can be broken down by marinating or moist heat cooking. Elastin: or gristle is a tough, rubber-like protein. It cannot be broken down by cooking. However, mechanical tenderizing prior to cooking such as cutting, grinding and pounding can tenderize elastin. The more connective tissue you have, the tougher and chewier the meat will be. As the animal ages the connective tissue changes - this makes the meat tougher. Connective tissue that is tough and can only be broken down by mechanical tenderizing, not by cooking. COLLAGEN (white, The connective thin- dissolved tissue by marinating that softens or with moist moisture heat cooking) or acid MUSCLE FIBRES (tender) 2. Aging Process If you were to try beef that hasn t been aged, you would probably find it tough and unpalatable. To reduce toughness, the meat processors let meat age. Did you remember that meat has been cut and stored in the strong, cryovaced bags? This is one way meat ages. It is referred to as wet aging a technique that removes oxygen from the bag and then the bag is heat sealed to make it airtight. Other meat processors hang the carcass upside down usually by the hind shank before cutting into primal cuts. This is known as dry aging. Aging allows enzymes that are in the meat to begin loosening the connective tissue and relaxing the muscle fibres. The beef gains tenderness quickly and depending on the process is typically aged up to 14 days dry aged, while wet aging can continue up to 28 days. Please note meat cannot be aged safely at home. Student Learning Guide 1-19