Cold Tea Infuser for PET Bottle

thingiverse

Some years ago, a friend asked me if I could print a cold tea infuser that can be inserted directly into the pet bottle, just like he had seen in China. At first, there was no design ready to be printed. After some thinking and searching for a suitable solution, food-safe material, and trying different approaches, here's an overview of something that works. The idea is based on a strainer that fits snugly into the bottle neck while covered by a cap. The cap has been extended so it also serves as a regular bottle cap, allowing the tea to infuse inside. There's also a small tank where you can move the strainer and cap once the tea is ready. You can then seal the bottle with its original cap, for instance when hiking. #### Change Log 2020-05-21 - Version V1.02 features a significantly smaller rubber gasket diameter (2-2.5mm) was released. Version V1.00 remains available for 3mm gaskets. The tank is now only included in version V1.02 but can be used with V1.00 as well.