There are 2 entries in this glossary.
| Term | Definition |
|---|---|
| Thermal Shock Breakage | Stress exerted on preserving jars when glass is exposed to sudden temperature differentials. This stress weakens the glass and can lead to glass breakage, commonly evidenced by the bottom breaking out.
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| Two-Piece Closure | A two-piece metal closure for vacuum-sealing fresh preserving jars. The set consists of a metal screw band and a flat metal lid with a flanged edge lined with sealing compound.
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