Matatu-matatu ekuisa chisimbiso aluminium foil vacuum bag yechikafu chakabikwa ndeimwe yeanonyatso kurongedza kurongedza chikafu, kunyanya chikafu senge chikafu chakabikwa nenyama.Zvinhu zvealuminium foil zvinoita kuti chikafu nezvimwe zvichengetedzwe zviri nani.Panguva imwecheteyo, inogutsa mamiriro ekubuda uye kupisa kwekugeza kwemvura, iyo inonyanya kukosha pakudya kwekudya.