A "churchkey" is a type of bottle opener traditionally used to open beer bottles, especially those with metal caps. The name is believed to have originated from the tool's resemblance to the large keys used to open church doors. Churchkeys are often made of metal and feature a pointed end for puncturing cans and a flat end for prying off bottle caps. In addition to its practical use, the churchkey has become a symbol of craft beer culture. Many breweries and beer enthusiasts appreciate its vintage design and functionality, making it a popular accessory for those who enjoy craft beer and home brewing.