4, use a fruit knife, or a knife with serrated teeth (note: the blade can not be too wide, not too narrow, just enough to be able to penetrate into the cork, but will not cut the edge of the cork). Stick the blade into the center of the cork, trying to avoid scratching the edge. Holding the neck of the bottle in one hand, slowly turn the handle of the knife, driving the cork along with it; do not turn it with too much force. Then lift the handle slowly upward and pull out the cork slowly.
5. Take two paper clips and a pen. Straighten the paper clips partially, keeping the curvature of the ends unchanged. Stick the two paper clips into the bottle through the gap between the cork and the mouth of the bottle until one end of the paper clip is lower than the cork. Rotate the paper clips and hook them around the cork. Wrap the other end of the paper clip securely, reach the pen into the wrapped portion and lift upward to slowly pull out the cork.