Lack of quality control in the canning process may allow ingress of water or micro-organisms. Most such failures are rapidly detected as decomposition within the can cause gas production and the can will swell or burst
Kusowa chisamaliro poika zinthu muchitini zikhoza kupangitsa kulowa kwa madzi kapena tizilombo. Zambiri zolephelazi zimadziwika pamene zinthu zayamba kuwonongela ku chitinimo zikhoza kutulutsa mphweya ndipo zikhoza kutupa kapena kuphulika