Cold brew coffee funnel

thingiverse

I created a freestanding funnel for brewing cold coffee, specifically designed to complement these particular bottles: http://www.amazon.com/gp/product/B0052P2SJY/ref=oh_aui_detailpage_o03_s00?ie=UTF8&psc=1. The design allows air to escape as the bottle fills, making the brewing process easier. While it works well with 20oz soda bottles too, performance is slightly better with its original purpose in mind. As an added bonus, I've included an IGES file if you're interested in customizing the design. To improve upon my initial version, I revisited and upgraded the design. The funnel is now larger, boasts a bigger opening for air release, and accommodates bottles with 1.5" neck openings. If you're curious about these updates, check out the Funnel_4 files. Initially created to optimize use with Trader Joe's coffee bottles, this free-standing design ensures smooth coffee brewing with less hassle from pouring.