I have changed foods on my pup. I want to chop the food a little finer. Am going from RC to BB. I see BB is a little bigger and am so afraid Penny may choke on the kibbles. Such small mouths they have. I bought at store today a small mini chopper. It seems to just shave the kibbles down. Power left somewhat. I don't drank coffee so have no idea if the coffee grinder is a better idea. I have seen some of you gals say you have wore grinders out. Does it just shave the edges off the kibbles too or what. The chopper I can use for other things but the grinder I can't that is why I tried the chopper first.