From the makers of the best growler on earth comes the first ever at-home nitro cold brew maker. Brew, store, and serve perfectly frothy, caffeinated goodness from this murdered-out go-keg, which absolutely smashed its Kickstarter funding goal as soon as it dropped. Basically, it uses nitrogen cartridges to infuse your cold brew with micro-bubbles, creating the creamy, frothy experience you'd otherwise pay five dollars a cup for at your local coffeeshop. And because it can keep 12 cups of nitro fresh for up to two weeks, it'll save you a whole bunch of morning coffee money — so it basically pays for itself. That's just math.