Please be careful to not exceed the Koyukkuri's limits when stuffing with filling. The filling can easy rupture the Koyukkuri's delicate outer skin.After two weeks, they should be long enough to serve as casings for the sausages. At this time, all that's needed is to stuff the nozzle of a sausage grinder into their mouth.
As for the filling, we prefer to use high quality salted pork belly filling.