PFAS (“forever chemicals”) are a large family of man-made chemicals used to resist heat, water, grease, and stains. The tradeoff: they persist in the environment and can build up over time. We can’t fix everything at once—so we focus on the highest-impact, easiest steps first (starting with water).

PFAS stands for per- and polyfluoroalkyl substances—a big family of chemicals engineered to be extremely durable. That durability is exactly why they’ve been used for decades in products that need to repel water, oil, stains, or withstand heat. It’s also why they’re called “forever chemicals”: many PFAS don’t break down easily and can linger in water, soil, and our bodies for a long time.

Key point: PFAS isn’t one chemical—it’s thousands of related compounds. Some are better studied (like PFOA and PFOS), while many others have limited data.

PFAS became popular because they solve real manufacturing problems: they make materials slicker, stronger, and more resistant to heat/grease/water. Over time, they spread into everyday use—especially where “nonstick,” “waterproof,” and “stain-resistant” became default expectations.

And when PFAS are used widely, they can end up in the environment through manufacturing releases, disposal, and everyday product wear—ultimately showing up in water systems and beyond.

Water is a major exposure pathway because it’s an everyday input—and it’s highly fixable once we choose the right approach for our home. The good news: there’s increasing regulatory pressure and better testing/treatment options than ever.

Think: grease-resistant wrappers/liners and some food-contact materials. Not every package has PFAS, but it’s common enough that it’s worth being aware.

Carpets, upholstery, “performance” fabrics, and some outdoor gear may use PFAS chemistry for water/stain resistance.

Certain nonstick coatings and high-heat industrial uses have historically used PFAS-related chemistries.

A big historic source in many communities (especially near airports/military sites).

We’re not here to scare anyone—we’re here to help people make smart tradeoffs.

Major public health agencies note associations between certain PFAS exposures and health outcomes (the specifics vary by compound and exposure level). The important practical takeaway: reducing ongoing exposure—especially from high-impact sources like water—makes sense as a precautionary move while science and policy continue to catch up.

(This newsletter is educational and not medical advice.)

This is the part that’s actually moving:

The U.S. EPA finalized national drinking water standards for several PFAS (including PFOA and PFOS) and a combined “hazard index” approach for certain others—meaning utilities and states are under real pressure to test and reduce levels.

EPA also finalized a rule designating PFOA and PFOS as hazardous substances under CERCLA (“Superfund”), which can affect cleanup responsibilities and accelerate remediation efforts.

States are increasingly limiting PFAS in certain consumer products. Example: Minnesota’s restrictions on PFAS in cookware are one signal of the broader direction—more categories are likely to follow over time.

Instead of chasing headlines every day, we track a few signals that matter:

When we see these words, we pause and verify before buying:

We don’t need perfection—just awareness + better defaults.

Find out what’s known about local water.

Then we choose the next step based on what we learn—not guesses.

If we only fix one thing first, we start with water—it’s consistent, daily, and one of the most actionable levers we have.

Next issue: Water First: The Simple PFAS Plan (we’ll cover what matters, what to do this week, and how to choose the right next step for your budget).