Fortunately, you can open virtually any rusted jar by removing rust particles, lubricating the threading and using a rubber jar opener to get a firm grasp on the lid.
Things You Will Need
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Run the jar and lid under a stream of warm water while scrubbing the edge of the rusty lid with a small wire brush. Pay special attention to the point where the lid meets the threading on the jar.
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Rinse the jar thoroughly and dry with paper towels.
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Turn the jar upside down and spray a small amount of WD-40 at the edge of the lid. Wait a few minutes to allow the lubricant to run down into the threading.
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Place a rubber husband over the jar lid and twist in a counter-clockwise direction.
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Wipe down the threading and rinse the jar lid to remove excess lubricant.
The Drip Cap
- Jar lids tend to rust when left in a damp, humid atmosphere.
- The problem is exacerbated in the case of a metal jar and lid, as rust will form on both the lid and the threading.
- Wipe down the threading and rinse the jar lid to remove excess lubricant.