Flutterby™! : Removing microplastics with boiling

tl;dr: Boiling water causes microplastics to bond with the scale/minerals, a coffee filter will then collect it. Newsweek: Scientists Reveal Simple Trick to Reduce Microplastics in Your Tap Water

In their study, published in the journal Environmental Science and Technology Letters, the team, led by Zhanjun Li and Eddy Zeng, collected samples of hard tap water from Guangzhou, China, and spiked them with different amounts of nano- and microplastics. The samples were than boiled for five minutes and allowed to cool before the team measured the amount of free-floating plastic present in each sample.

Via