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You can open a can without a can opener — you just have to be careful. Here's how to open a can with a knife, metal spoon or no tools at all (a rough surface).
Suddenly, your can opener breaks, and the can is nowhere near open. Now you’re in a pickle—how can you open a can without a can opener? Well, we wondered about that too. Turns out, several ...
Here's how to open a can with a knife or even a spoon and some brute force. And if you happen to be out camping and don't even have that, a rock will suffice.
To shotgun a beverage, a small hole is punched in the side of the can, close to the bottom. In order to prevent the liquid from spilling out while the cut is made, the can is held horizontally and the hole is made in the resulting air pocket. The hole can be made with any sharp object—typically a key, bottle opener, pen, or knife.
These early openers were basically variations of a knife, though the 1855 design continues to be produced. The can opener consisting of the now familiar sharp rotating cutting wheel that runs round the can's rim to cut open the lid was invented in 1870, but was considered very difficult to operate for the ordinary consumer.
This can be accomplished with a heavy knife or other sharp tool, but can openers are safer, easier, and more convenient. Some cans, such as those used for sardines, have a specially scored lid so that the user can break out the metal by the leverage of winding it around a slotted twist-key. Until the mid-20th century, some sardine tins had ...
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