Most dogs with healthy digestive systems are fine with a complete cold turkey switch to raw food. For dogs with sensitive digestive systems or who commonly experience stomach issues, a more gradual approach is recommended. Slowly transition by replacing 25% of your dog's current food for several meals, gradually increasing the amount of raw until it's all raw.
Once the food has been thawed in the refrigerator, you can let it warm up to room temperature before feeding. Some dogs will throw up if they eat it too fast or if the food is too cold.
Dogs may be hesitant at first with raw meaty bones if they haven’t ever eaten them before. Your dog may sniff at it or lick it for a while and not know quite what to do. If raw meaty bones are new for your dog, you'll want to watch the first few times to make sure your dog is chewing it and not trying to swallow it whole. You can try holding it for them until they figure out how to chew bones like their jaws were intended to do. Eating them slowly is fine. If possible, it's best to feed RMBs outside. They can be messy and dogs like to try to take them somewhere else in the house. Like your couch ?
In the beginning you may see stools that are loose, odd or not happening. This is completely normal and natural when switching to a raw diet. You may see some soft, badly formed, oddly textured and/or oddly colored stool, sometimes with mucus. Dogs sometimes have trouble digesting raw food properly after being on highly processed commercial food and it takes a while for everything to start working properly. It is not unusual to have a day or two without a bowel movement. Once the digestive system has adapted, you will see stool that is firm, small, essentially odorless and quick to dry out and decompose.