• Refrigerate or freeze all perishable food. Your refrigerator should be kept at 40 degrees and your freezer at 0 degrees.
  • Never thaw foods at room temperature. Instead, thaw them in the refrigerator, in cold water, or in the microwave, and cook them immediately.
  • Wash your hands with soapy water before preparing food. Wash your hands, utensils, cutting boards, and other work surfaces after they come in contact with raw meat and poultry.
  • Never leave perishable food out of the refrigerator for more than two hours. If the temperature in the room is over 90 degrees, the food shouldn't be left out for more than one hour.
  • Thoroughly cook raw meat, poultry, and fish.

    Source: http://resources.purematters.com/diet-nutrition/healthy-eating/a-look-at-senior-nutrition