Canning 101
Become an expert in canning terminology
Dud Can
A can rejected for poor integrity or improper filling.
End (Lid)
The metal closure applied to the can body.
External Measurements
Measurements taken without destroying the seam (such as height, thickness). These can be measured with manual gauges such as the STH.
False Seam
A critical defect where the cover hook and the body hook do not interlock around the circumference of the can.
This can be caused by:
A damaged can flange,
Damaged or deformed ends,
incorrect seamer settings
Resulting in:
Clam shell (seam opening),
Product and gas leakage
Fill Height / Headspace
Distance between liquid level and top of can.
Filler
The machine that fills the can with product before it continues to the seamer.