metal pads squeak and last long, organic are more quiet and don't last as long.

sand and dirt also make your brakes squeak.

if your main problem is squeaky brakes, i don't see a need to bake the pads.

actually, no matter what, i don't understand the need to bake brake pads. not stopping enough? adjust brakes. too squeaky, refer to above advice.

the ONLY thing on your bike that should get baked is the rider.