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| ABOVE: Changes in cans as a result of microbial spoilage. | |||
| Normal can; note that the top of the can is indented due to negative pressure (vaccum) inside. | Slight swell resulting from minimal gas production. Note that the lid is slightly raised. | Severe swell due to entensive gas production. Note the great deformation of the can. This can is potentially dangerous, and could explode if dropped or hit! | The can shown in above was dropped and the gas pressure resulted in a violent explosion. Note that the lid has been torn apart. |
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