When I was doing a lot of big bream fishing I was also unemployed due to an accident.This meant that money was tight and due to the massive ammounts of feed I was using decided to make my own.With normal household kitchen equipment it takes FOREVER!!!.It is a shame as you can get trays of stale bread very cheap,sometimes for free.I was lucky enough to have a friend who worked in an Army cookhouse.For a pint or two he used to supply me bread crumb by the bin full.I used to (and still do) make this go further by adding Layers Mash which is cheap and available from any animal feed'pet food supplier.It is very fine so does not "over feed" like wheat/corn/maize etc.Another friend of mine struck a deal with his local bakery where they would dry out and crumb any left over bread in return for a couple of trout a month!