The key is leverage and not impeding the cap in any way except for the lever

Source: Ningbo Heng Yuan Wang Plastic Co., Ltd.  author:   Time: 2013-05-10

 Use the largest knuckle of the index finger as the fulcrum for your lever (google "fulcrum" and think of the Bic lighter as the lever, see below). This method can easily, forcefully, and loudly launch the bottle cap more than 10 feet in the air, depending on the bottle. I've gotten some good, loud, launches with Samuel Adams but most any pry off beer cap will do. Do NOT agitate the bottle -- it is NOT necessary. Due to the possible forceful ejection of the cap, be aware of your eyes and face -- a bottle cap to the eye could cause permanent damage! The old style full-size Bic lighter, which is somewhat oval shaped, works well due to its dimensions and its tendency to grip the underside of the cap with limited slippage.

 

Company resources：bottle opener, coin holder
lottery scratcher, key chain
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