Iyi ice cream kapu yakavharwa kaviri dhizaini inoita kuti mbiya yebepa irege kudonha, ukuwo firimu rekunze rePE richidzinga mvura nemafuta, uye firimu remukati rePE rinochengeta muviri wemukombe webepa kuti usakanganiswa, zvichiita kuti ive yakasimba uye yakasimba.