Burned out 450 Ohm resistor. Where can I get a new

It would be a great help if we knew the make and model number, Most electronics supply stores have wire wound resistors. Many of them have adjustable terminal taps so you can set the resistance to the value that you desire. The problem is that components are made to fit into a specific location so the option of buying a wire wound resistor and then being able to mount it directly into your food processor is pretty much gone. Honestly the best source for your part is going to be the maufacturers authorized service center. It would be a great help if we knew the make and model number, Most electronics supply stores have wire wound resistors. Many of them have adjustable terminal taps so you can set the resistance to the value that you desire. The problem is that components are made to fit into a specific location so the option of buying a wire wound resistor and then being able to mount it directly into your food processor is pretty much gone. Honestly the best source for your part is going to be the maufacturers authorized service center.