Bottle opener
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A bottle opener is a device which enables the removal of metal bottle caps from bottles. More generally, it might be thought to include corkscrews used to remove cork or plastic stoppers from wine bottles. Another name for some types of bottle opener is church key.
A metal bottle cap is affixed to the rim of the neck of a bottle by being pleated or ruffled around the rim. A bottle opener is a specialised lever inserted beneath the pleated metalwork, which uses a point on the bottle cap as a fulcrum on which to pivot.
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[edit] Varieties
There are several distinct designs of such bottle openers. Wall mounted openers are typically found behind bars in pubs, whilst hand-tool bottle openers tend to be found and used in domestic environments. Whereas the functional elements of bottle openers tend to be consistent, their aesthetic design is subject to very great variety, and a great many decorative types are available.
As of 2005, there are five main varieties used around the world used in a professional capacity. They are known as: Waiter's Friend, Bar Blade, Crown Cork Opener, The Cork Master, and The Ah-So.
[edit] Waiter's Friend
The most common wine opener consists of a flat housing (often plastic covered) similar to a Swiss army knife with a corkscrew and lever (which doubles as crown cork opener) with either a knife or auto-foiler to remove the foil top of wine bottles and then the cork. Designed to be screwed in to within 1 full rotation before the end of the screw (more will pierce the bottom of the cork and result in extra flotsam on the surface of your wine) before levering out the cork.
[edit] Bar Blade
A relatively new trend in opening. It is a flat blade of steel approximately 40mm wide and 160㎜ long with a thumb hole at one end and a letterbox cut at the other to remove the caps from beers and soft drinks. It has gained fashionability through widespread usage by professional bartenders in Canada, the USA, and most notably the UK. Carried in the pocket or against the body or on a zip string, it is both convenient and fast for the modern bartender. Its obvious disadvantage is that it does not remove corks.
[edit] The Crown Cork Opener
Invented at the same time as the crown cork it is the original "bar blade". But as well as being portable it also comes as a fixed device to be attached to vertical surfaces, often with a tray to catch the bottle tops. Again, though, it does not open wine.
[edit] The Cork Master
A useful tool. Used by businesses that need to open a large volume of wine efficiently and without waste or breakage. It is a large brass tubular device, fixed at a 45° angle to the bar, with a lever pivoted halfway and extending towards the user. The bottle's neck is inserted firmly in the lower aperture of the tube and the lever pulled down firmly and steadily to the bottom. This drives a corkscrew into the cork at a regular depth each time. When the lever is returned to its original position it extracts the cork. When the bottle is removed pull the lever to expose the cork at the bottom, it loosens the cork and returns the lever firmly to its starting position, whereupon the cork will then fall out. This type of opener has no crown cork opening facilities and cannot open crown cork bottles, such as those used for beer and bottled water.
[edit] Wall-Mounted
Works the same as the lever variation, except that it is attached to the wall, to allow for simpler bottle-opening, which can be done with one hand. The bottle cap can fall into a trash can placed below the opener, or you can retrieve it after removal from the bottle.
[edit] The Ah-So
This is a shaped like a large key with a squared oval handle about 5㎝ × 8㎝, and two thin metal strips, approximately 10㎝ long, 5㎜ wide, and 0.5㎜ thick, descending in tandem from the center of the handle. The two strips are spread open and then wiggled into the space between the cork and the bottle on either side. Once fully in place, a turn and pull of the handle causes friction to turn the cork and pull it out of the bottle. "Ah-so" is a translation of the German title, "Ach so!", an expression meaning roughly "Ah, I see." It is named so because its appearance often baffles people, but when its use is demonstrated, they often exclaim "Ah! So that's how it works". The ah-so is useful in opening old bottles with brittle corks, because it does not puncture the cork, limiting the likelihood of a brittle cork crumbling into the wine.
