"Also, my food processor never had a problem with veg chopped into medium size pieces"Which food processor is it? Did it turn them into mush? Puree them?
I did put beets through my food processor with the grating blade up. They grated up about as fine as you would use if they were carrots and you were making a carrot cake, not very big in other words. And they came out looking the same as they went in. Of the dog. :( I am checking output every day.
Perhaps some of the long story is needed. Oban had Inflammatory Bowel Disease, he lost over 20% of his body weight, traditional western medicine (Flagyl then Prednisone) didn't work. His poops were like a fire hose, liquid under pressure. We thought he was going to die. We were put onto a holistic Vet who used chinese medicine on him and we believe it's her methods that are responsible for him being alive today. We cooked food at first but now are raw and he is doing very well with all his raw meats and bones. And with his less hard vegetables and fruits. It's just the very hard ones like the sweet potato that are a problem and sweet potato is a staple in this diet. This Vet endorses the BARF diet as it is presented by Dr. Ian Billinghurst and since she is the reason my dog is still alive I feel whatever she suggests I should do I'm going to do it.
ETA: Within reason I'm going to do it. She actually suggests a juicer. Her own is very expensive, $2500 today. Probably with the exchange rate between Canadian $ and the pound sterling it would be about that in pounds. I don't think she expects me to buy that one.