"Wine corkscrews", roughly divided into three types, ordinary type, screw type, sommelier wine knife. Ordinary type is now gradually rare. Spiral type is generally done for home use, simple skills, often a rotating screwdriver in the middle, the center of the screwdriver drilled into the corkscrew, the corkscrew on both sides of the natural card main bottle mouth, on both sides of the lever similar to the lever-like lever, left and right uniformly on the lever, the corkscrew was lifted up, thus opening the bottle. The "sommelier wine knife" is all the tools together, similar in appearance to the "Swiss Army Knife", the operation has a certain degree of difficulty, but after mastering it is much better than the screw-type, and the first step of the sommelier's knife can easily remove the plastic sealing of the wine bottle. The first step of the sommelier's knife can easily remove the layer of plastic sealing film from the mouth of the wine bottle, while the screw-type can only be used to simply lift the cork. In addition to the use of the sommelier's knife in the opening of the bottle requires certain operating skills, generally if you want to buy a durable sommelier's knife, then you have to spend a lot of money

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