Obvious precautions should be taken when feeding raw meat

Muscle meats without bone, or without some added mineral supplement are not a complete diet for the cat. If your cat will not eat bone you may rinse and dry out eggshells and grind them to put into the meat for calcium. If you do use eggshells you will need to give about 2/3 of a large egg (1/2 tsp) per pound of meat.

Organ meats, by themselves, are also not complete and balanced, and cannot be fed as an exclusive diet. It is absolutely imperative that homemade diets be properly formulated so that they contain all of the essential nutrients for the cat.

Use safe food handling techniques - clean and sterilize all equipment, including cutting boards and food dishes after each use. Wash hands thoroughly after handling the raw meat. 

Use the meat immediately, or freeze the meat mixture in individual serving-sized packets for future use. (Freezing also destroys many bacteria.)

Thaw meat in the refrigerator, not sitting on the counter at room temperature. Putting the raw meat in a baggie and placing in warm water can be used to thaw or warm the food after it has been mostly thawed in the refrigerator. Microwaving raw food damages the live enzymes and bones will harden even in just 30 seconds of microwaving.

Always take up and discard any uneaten food after 1/2 an hour to an hour.