Most spirits sold in stores fall in the 80–100 proof range, which equals about 40–50% alcohol by volume (ABV). However, some liquors go far beyond that, pushing limits to 150, 190, and even higher ...

These high-proof bourbons and ryes—often called cask strength or barrel proof—were once just a peripheral curiosity, but in recent years they’ve captured the attention of industry critics, writers, ...