Summer is upon us and with it, San Francisco’s famously frigid fog. And what better way to contemplate the misery of unseasonably chilly temperatures than with an equally chilly beverage?
Fortunately, I happen to be the proud owner of a cold drip coffee brewer, perhaps the most time-consuming and impractical way of making coffee on the planet. Unfortunately, it suffers from an even more serious problem: bad tolerances. And by “bad” I mean low, which equates to large (opposite of high). Anyhow, here it is in pictures:
Perhaps worst of all, these problems are compounded by tolerance stacking. Since the parts are, after all, stacked, the worst-case scenario for the topmost part combines the worst-case deviations of all the parts under it.
This tilt could result in uneven extraction, since the dripping water will tend to drill down the same path through the column of grounds.