On my many canning groups, it is not recommended to can milk. I have heard people do it, but I think it has to do with the fat in the milk. Commercial processors have special equipment to deal with milk. I always thought it would be a good idea, but after reading about it, I changed my mind. I would also think that it would drastically change the flavor of the milk. We have decided to milk at least 10 months a year, maybe year around, but there are enough of us to milk year around, my daughters and son are tied into their jobs anyway, so that doesn't really make a differnce. Carolyn