A na-ejikarị igwe a maka teknụzụ PET na-ekpo ọkụ na-ekpo ọkụ, igwe a ga-eme ka okpu na ọnụ karama kwụsị.
Mgbe emejuchara ma mechie karama ahụ, igwe a ga-atụgharị ya na 90 Celsius C ka ọ dị larịị, ọnụ na okpu ga-abụ ịgba ọgwụ mgbochi nke ime ya.Ọ na-eji eriri mbubata nke kwụsiri ike ma bụrụ nke a pụrụ ịdabere na ya na-enweghị mmebi nke karama ahụ, ọsọ nke nnyefe nwere ike gbanwee.