The Resupply Blog

TL;DR To make cold brew concentrate, steep coarsely ground coffee in cold water at a 1:4 ratio by weight for 12 to 18 hours, then strain it. Dilute the concentrate about 1:1 with water, milk, or ice to serve. A...

Short answerFour ounces of cold brew concentrate, half an ounce of caramel sauce, a small pinch of flaky salt and four ounces of cold milk over ice. The salt is the part that matters. Without it the drink is just...

Everything you need for cold brew is a quart mason jar and a coffee filter. Here is the exact ratio, steep time, and straining trick.

A French press already has the filter built in. Here is the ratio for a 34 ounce press, the steep time, and the second strain that kills the grit.

The cold brew ratio chart, grind, steep time, and straining method, plus three ways to make it and what it really costs per glass.