Umatshini wokuvuthela ibhotile ngokuzenzekelayo webhotile yinto entsha ebalulekileyo kwicandelo loomatshini wokupakisha, ngakumbi abavelisi abajonge ukulungelelanisa iinkqubo zabo zemveliso. Ezi zixhobo ziphambili zenzelwe ukwenza iibhotile zeplastiki ezikumgangatho ophezulu ukusuka kwii-preform, ukulungiselela amashishini ahlukeneyo, kubandakanya ukutya kunye nesiselo, izithambiso kunye namayeza. Enye yezibonelelo eziphambili zezi