This is done by melting the chips and extruding them out first through a fine grill to remove
any solid dirt or metal particles that have made it through the treatment thus far and then
through a die of small holes. If the plastic was simply allowed to extrude from these holes it
would come out as spaghetti-like strings and quickly tangle together. However, it is sprayed
with water as it comes out (to prevent the plastic from sticking together) and cut off by
rotating knives to give small, oval pellets.