Jigging with white and colored feathers and artificial sand eel for Pollack, mackerel and cod is successful.
Country western dancing also comes from jigging, which also originates with early immigrants.
The smaller duff is separated by vibrating or rotating screens into a great number of sizes, which are cleaned by washing in continuous current or pulsating jigging machines, where the lighter coal rises to the surface and is removed by a stream of water, while the heavier waste falls and is discharged at a lower level, or through a valve at the bottom of the machine.
