Sometimes a hacker has a specific sort of problem, and uses the tools they have to solve it in a way that just might be helpful to someone else. That’s the case with [Matvey Kukuy]’s Coffee Steam Dryer (V2), which performs the very specific job of safely swallowing up expelled steam and water from an espresso machine’s steam wand.

Steam wands are used to froth milk into a velvety texture, and some machines require purging the wand before using it for best results. Where does the resulting jet of steam and spatter of superhot water droplets go? Not the machine’s problem. That’s for the user to deal with, and [Matvey] decided to address it by designing and 3D printing a tool.

The pipe-like object works by having steam jet into the open top (printed in ABS or ASA for heat resistance) where the device redirects the hot gas and captures any expelled water in the process. The steam flows through expansion chambers, dragging cool air along with it in the process, until it ultimately gets redirected away from the user.

By the time steam exits the outlet, some has condensed and the remainder has cooled and slowed down enough to not be a worry.

It’s the second version of the device, and we like how it has no moving parts and can be disassembled for cleaning and drying.

Coffee is an area that is rich with hacker activity, from 3D-printed micro-brew machines to completely DIY roasters but tools like this show how improving the coffee workflow can also be beneficial.