Cold brew is having a moment in bars as much as in coffee shops, and why not? It can complement a wide variety of liquors.

You can make a mezcal old fashioned for a smoky twist, add a shot of cold brew coffee for a caffeinated alternative, or use chai tea and spices for a lovely seasonal spin. In Wisconsin ...

But there’s a problem. Cold brew, prized for its low acidity and smooth expression of a bean’s character, famously takes as long as 24 hours to brew the old-fashioned way. Not everyone has the ...