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Safe Handling of Lamb

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SELECTING THE BEST

Fresh is Best: Select lamb that is pinkish-red with a velvety texture. Dark red cuts generally indicate the meat is older and less tender. Look for good marbling (white flecks of fat within the meat muscle), and meat that is fine textured and firm.

Product Dating: Product dating, applying “sell-by” or “use-by” dates, is not required by federal regulations. However, many stores and processors may voluntarily choose to date packages of raw lamb. Use or freeze products with a “sell-by” date within three to five days of purchase. If the manufacturer has determined a “use-by” date, observe it. It’s always best to buy a product before its date expires. It’s not important if a date expires after freezing lamb because all foods stay safe while properly frozen.

Product Inspection and Grading: All lamb found in retail stores is either USDA-inspected for wholesomeness or inspected by state systems which have standards equal to the federal government. Each animal and its internal organs are inspected for signs of disease. The “Passed and Inspected by USDA” seal ensures that the lamb is wholesome and free from disease.

Although inspection is mandatory, its grading for quality is voluntary, and a plant pays to have its lamb graded. USDA Lamb Quality Grades are based upon palatability-indicating characteristics of the lean and carcass conformation. Conformation has no direct influence upon the eating quality. For lamb and yearling mutton the quality grades are Prime, Choice, Good and Utility.

STORING

Refrigeration: Packaged whole cuts of fresh lamb may be refrigerated in their original wrapping in the coldest part of the refrigerator up to four or five days after purchase. Ground lamb can be stored in the refrigerator for up to two days; cooked lamb is at its best refrigerated no longer than four days.

Freezing: Freeze whole cuts of fresh lamb if you do not plan to cook it within four days after purchase. Wrap whole cuts of lamb separately in heavy-duty foil or moisture- and vapor-proof freezer bags or wrap before freezing. Label for ease in selecting just the right number of cuts to thaw for a single meal. Be sure to press the air out of the package before freezing. If you plan to freeze lamb in its original wrapping, overwrap the porous store plastic with freezer bag or paper. Cooked lamb cuts may be frozen in the same way as fresh, unless made with a sauce or gravy. In that case, pack the meat in a rigid container with a tight-fitting lid.

PREPARATION

Cleanliness:

Thawing: Thaw uncooked lamb in the refrigerator or in cold water. NEVER thaw meat at room temperature. Thawing by refrigeration requires planning ahead, most likely allowing a 24-hour thawing period. After defrosting raw lamb by this method, it will be safe in the refrigerator up to five days before cooking. During this time, if you decide not to use the lamb, you can safely refreeze it without cooking it first. To thaw lamb in cold water, leave the meat in its original wrapping or place it in a watertight plastic bag. Change the water every 30 minutes.

For quick thawing of uncooked or cooked lamb, use the microwave, but plan on cooking the meat immediately after thawing because some areas of the food may become warm and begin to cook during microwaving. Thawing time will vary according to whether you’re thawing a whole roast or cuts and the number of parts frozen together. Use the DEFROST or MEDIUM-LOW setting, according to the manufacturer’s directions. Turn the roast and separate parts as they thaw, taking care the meat does not begin to cook. Repeat as needed. Foods defrosted by the cold water method or in the microwave should be cooked before refreezing because they may have been held at temperatures above 40 °F.

Marinating: Marinate food in the refrigerator, not on the counter. Discard the marinade after use because it contains raw juices, which may harbor bacteria. If you want to use the marinade as a dip or sauce, reserve a portion before adding raw food.

Partial Cooking or Browning: Never brown or partially cook lamb, then refrigerate and finish cooking later, because any bacteria present would not have been destroyed. It is safe to partially pre-cook or microwave lamb immediately before transferring it to the hot grill or oven to finish cooking.

COOKING

Importance of Kitchen Thermometers: One of the critical factors in controlling bacteria in food is controlling temperature. Pathogenic microorganisms grow very slowly at low temperatures, multiply rapidly in mid-range temperatures and are killed at high temperatures. For safety, foods must be cooked thoroughly. It is essential to use a thermometer when cooking meat and poultry to prevent undercooking and, consequently, prevent foodborne illness.

Using a thermometer is the only reliable way to ensure safety and to determine the “doneness” of most foods. To be safe, a product must be cooked to an internal temperature high enough to destroy any harmful bacteria that may have been in the food. Recent research has shown that color and texture indicators are not reliable.

Cooking the Meat: For safety, the USDA recommends cooking ground lamb patties and other ground mixtures to 160 °F. Whole muscle meats such as chops and roasts should be cooked to 145 °F (medium-rare), 160 °F (medium) or 170 °F (well-done). Remember that appliances and outdoor grills can vary in heat. Use a meat thermometer to check for safe cooking and doneness of lamb.

Cooked muscle meats can be pink even when the meat has reached a safe internal temperature. If fresh lamb has reached 160 °F throughout, even though it may still be pink in the center, it should be safe. The pink color can be due to the cooking method or added ingredients. For approximate cooking times of lamb refer to Table #2.

Microwaving: When microwaving unequal sizes of lamb, arrange in a dish or on a rack so thick parts are toward the outside of the dish and thin parts are in the center, and cook on medium-high or medium power. Place a roast in an oven-cooking bag or in a covered pot. Refer to the manufacturer’s directions that accompany the microwave oven for suggested cooking times. Use a meat thermometer to test for doneness in several places to be sure the proper temperature as listed above has been reached.

SERVING

 LEFTOVERS

TABLE 1. SAFE HANDLING OF LAMB IN COLD STORAGE

Food

Refrigerator (40 ºF)

Freezer (0 ºF)

 

 

 

Fresh Lamb:
Roast
Steak/Chops
Ground/Stew Meat

Cooked Lamb:
Roast
Steak/Chops
Ground/Stew Meat


3-5 Days
3-5 Days
1-2 Days


3-4 Days
3-4 Days
1-2 Days


6-9 Months
6-9 Months
3-4 Months


2-3 Months
2-3 Months
2-3 Months

 

TABLE 2. APPROXIMATE LAMB COOKING TIMES (°F)

USE A MEAT THERMOTER TO CHECK FOR PROPER DONENESS

Cuts of Lamb

Size

Cooking
Methods

Cooking
Times

Internal
Temperature

Lamb leg, bone in

5 to 7 lbs.

Roast 325 ºF

20 to 25 min./lb.
25 to 30 min./lb.
30 to 35 min./lb.

Medium-rare 145 °F
Medium 160 °F
Well-done 170 °F

Lamb leg, bone in

7 to 9 lbs.

Roast 325 ºF

15 to 20 min./lb.
20 to 25 min./lb.
25 to 30 min./lb.

Medium-rare 145 °F
Medium 160 °F
Well-done 170 °F

Lamb leg, boneless,
rolled

4 to 7 lbs.

Roast 325 ºF

25 to 30 min./lb.
30 to 35 min./lb.
35 to 40 min./lb.

Medium-rare 145 °F
Medium 160 °F
Well-done 170 °F

Shoulder roast or
Shank leg half

3 to 4 lbs.

Roast 325 ºF

30 to 35 min./lb.
40 to 45 min./lb.
45 to 50 min./lb.

Medium-rare 145 °F
Medium160 °F
Well-done 170 °F

Cubes, for kabobs

1 to 1 ½"

Broil/grill

8 to 12 minutes

Medium 160 °F

Ground lamb patties

2" thick

Broil/grill

5 to 8 minutes

Medium 160 °F

Chops. rib or loin

1½" to
1" thick

Broil/grill

7 to 11 minutes
15 to 19 minutes

Medium-rare 145 °F
Medium 160 °F

Leg steaks

¾" thick

Broil/grill 4"
From heat

14 to 18 minutes

Medium-rare 145 °F
Medium 160 °F

Stew meat, pieces
Shanks

1 to 1½"
¾ to 1 lb.

Cover with
liquid; simmer

1½ to 2 hours

Medium 160 °F

Breast, rolled

1½ to 2 lb.

*Braise 325 ºF

1½ to 2 hours

Medium 160 °F

     *Braising is roasting or simmering less-tender meat with a small amount of liquid in a tightly covered pan.
       Refer to microwave’s oven manual for microwaving lamb, and check it with a meat thermometer.

Source:

USDA/FSIS (2006). Focus on:Lamb…from Farm to Tabl.e http://www.fsis.usda.gov/Fact_Sheets/Lamb_from_Farm_to_Table/index.asp


This information has been reviewed and adapted for use in South Carolina by P.H. Schmutz, HGIC Information Specialist, and E.H. Hoyle, Extension Food Safety Specialist, Clemson University.


This information is supplied with the understanding that no discrimination is intended and no endorsement by the Clemson University Coop-erative Extension Service is implied. All recommendations are for South Carolina conditions and may not apply to other areas. (New 4/99. Revised 1/07.)

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