If you don't often look at your meat packages before you buy, now it a great time to start.
Mold. Fresh meat should be mold-free. Cured and smoked meats may occasional have mold on the surface. Choose a different package, or as recommended by USDA, wash the meat with hot water and scrub the mold off with a stiff vegetable brush.
Leaks. Meat will come wrapped, including in vacuumed-sealed packaging, on trays wrapped in plastic, in butcher paper, and in bags sealed on both ends. Look for packaging that is fully sealed, has no holes, tears, or punctures, and is not leaking meat juices.
Sell-by dates. Sell-by dates are for the store selling meat. Buy meat with a sell-by date several days from when you plan to use it. Or if buying on the sell-by date, cook it that day or move the meat into a freezer.
Color. Meat color alone is not an indicator of food safety or spoilage. Colors of meat ranging from red to brown to gray are often about oxygen exposure, store lights, and type of packaging. Instead of color, purchase meat by the sell-by date and throw out meat that has off smells or feels slimy. For more about meat and poultry colors, visit The Color of Meat and Poultry from USDA.