I have used frozen meats for years in a slow cooker and I am quite alive to tell about it.
It just takes longer to cook and that is the point. If it is because someone says it is not "safe" to start with frozen meats- chicken in particular- I think it is the same belabored point as we hear all the time in the world of food. Do not use a raw egg for making Cesar Salad, etc. Be over-cautious. That is, in general, a good idea of course. My contention is that someone that understands food and how to cook, like Michael in Tampa, will have a very safe and delicious result by starting with frozen meat. If it was someone new to cooking I would not recommend starting out this way. My recommondation stands.
It just takes longer to cook and that is the point. If it is because someone says it is not "safe" to start with frozen meats- chicken in particular- I think it is the same belabored point as we hear all the time in the world of food. Do not use a raw egg for making Cesar Salad, etc. Be over-cautious. That is, in general, a good idea of course. My contention is that someone that understands food and how to cook, like Michael in Tampa, will have a very safe and delicious result by starting with frozen meat. If it was someone new to cooking I would not recommend starting out this way. My recommondation stands.