How to Open a Rusted Jar
- 1). 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.
- 2). Rinse the jar thoroughly and dry with paper towels.
- 3). 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.
- 4). Place a rubber husband over the jar lid and twist in a counter-clockwise direction.
- 5). Wipe down the threading and rinse the jar lid to remove excess lubricant.
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