Does Poland Spring Have Microplastics? What Has Actually Been Tested

Has Poland Spring been tested for microplastics?

Not in any peer-reviewed study we could find. The brand-level study most articles cite is Mason, Welch and Neratko (2018), which tested 259 bottles from 11 brands bought in nine countries: Aqua, Aquafina, Bisleri, Dasani, Epura, Evian, Gerolsteiner, Minalba, Nestlé Pure Life, San Pellegrino and Wahaha. Poland Spring is not on that list. Nestlé owned Poland Spring at the time, but Nestlé Pure Life is a different water from different sources, so its results don’t transfer.

The 2024 Columbia and Rutgers study in PNAS estimated about 240,000 plastic particles per liter, roughly 90% of them nanoplastics, in three US brands bought from a major retailer. The authors didn’t name the brands. Nothing published links that figure to Poland Spring, and we don’t either.

That leaves one small, brand-named result, described below. It is worth knowing about because it is the source of the “Poland Spring tested low” claims you may see. It is not a ranking.

What does the one brand-named result show?

In December 2017, the Story of Stuff Project, an environmental advocacy group, paid Abigail Barrows of Ocean Analytics to screen 19 US bottled water brands. Its published summary says 19.85 liters were analyzed in total, averaging 0.99 liters per sample, which works out to about one bottle per brand. Each sample was filtered through a 0.45 µm filter and counted under a stereo microscope at 45x magnification. Particles were classed as fibers or fragments by shape and color, and 96% were between 0.1 and 1.5 mm.

Poland Spring’s sample had 2 particles, or 1.9 per liter. Across all 19 brands the average was 8 per liter. The group’s March 2018 release called the results preliminary. Three limits matter more than the number:

• The particles were not chemically identified. Visual sorting can’t tell a polyester fiber from cotton or another non-plastic fiber.
• The method could not see small particles. Most particles in later studies are under 20 µm, far below what a 45x visual count picks up.
• One sample can’t represent a brand. A different bottle, plant or month could give a different count.

What does Poland Spring’s water quality report cover?

Poland Spring publishes an annual water analysis report (2025 edition, retrieved October 18, 2026). It lists ten Maine sources: Poland Spring (Poland), Clear Spring (Hollis), Evergreen Spring (Fryeburg), Spruce Spring (Pierce Pond Township), Garden Spring (Poland), Bradbury Spring (Kingfield), White Cedar Spring (Dallas Plantation), Ellis Spring (Rumford), Bella Luna Spring (Lincoln) and Cold Spring (Denmark).

The “factory water treatment process” for still spring water is four steps: a storage silo holding filtered source water, microfiltration, ultraviolet and/or ozone disinfection, then bottling. Sparkling adds CO₂ injection. The report doesn’t give a filter pore size, so it says nothing about which particle sizes the filter would catch. More to the point, any filtration happens before the water meets the bottle and cap, which are the sources most studies point to.

The results are mostly “ND”, not detected at or above the method reporting limit. Antimony, a catalyst residue linked to PET, is not detected. Neither is the phthalate DEHP, nor any of the 18 PFAS compounds listed (shown against the bottled water industry’s 5 ng/L limit). Spring water pH ranges from 6.2 to 7.5, and total dissolved solids from 27 to 84 mg/L, so it is a soft, low-mineral water. There is no row for microplastics or nanoplastics, which no US bottled water standard currently requires.

Poland Spring was a Nestlé Waters brand until 2021, when that business became BlueTriton Brands. In November 2024, BlueTriton merged with Primo Water, and the combined company, Primo Brands, lists Poland Spring alongside Pure Life, Deer Park, Arrowhead and Mountain Valley. The 2025 quality report still carries a BlueTriton Brands copyright. The ownership change doesn’t alter the bottle or the evidence; it matters mainly when you look for the current report or contact the company.

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What is a Poland Spring bottle made of?

Most Poland Spring is sold in PET (#1) bottles. On its sustainability page, the company says its bottles can be recycled “and, in some cases, bottles that have been made from 100% recycled materials”, with the footnote “Excludes cap and label.” Recycled PET is chemically the same polymer as new PET, so the recycled claim is a waste claim, not a particle claim. Poland Spring’s pages we reviewed don’t state the cap’s resin.

Its still water range runs from 8 fl oz bottles to 5-gallon jugs, and includes a 25 fl oz aluminum bottle that the company sells as a sustainability option. Each format puts different materials against the water:

Aluminum is not a plastic-free contact surface. Drink cans and bottles carry an internal polymer coating, as our guide to whether cans are lined with plastic explains. Neither format has a published particle test, so this table maps the contact materials. It doesn’t rank them.

Does Poland Spring contain phthalates or other plastic chemicals?

Consumer Reports tested 85 supermarket and fast foods for plasticizers in a report published in January 2024. Poland Spring 100% Natural Spring Water in a plastic bottle measured 4,217 nanograms of total phthalates per serving, summed across 10 phthalates. In the beverage chart that placed it fourth of nine, behind Brisk Iced Tea in a can, Coca-Cola and Lipton Diet Green Tea. CR reported that none of the foods it tested exceeded the thresholds US and European regulators have set, while its scientists argued those thresholds are outdated.

Two cautions. First, this is a dissolved chemical result. It is not a microplastic count and can’t be converted into one. Second, phthalates are not part of the PET polymer recipe, and CR’s sampling can’t tell us whether they came from the bottle, cap liner, processing equipment or source. Poland Spring’s own report lists DEHP, one of the ten, as not detected at its reporting limit. The two results used different methods and samples, so neither cancels the other.

How does Poland Spring compare with Dasani and Aquafina?

Dasani and Aquafina are the two big US brands that were tested by name. In the 2018 Mason study, Dasani’s two lots averaged 165 and 74.6 particles per liter, and Aquafina’s 252 and 174, counting particles down to about 6.5 µm. Both are purified municipal water; Poland Spring is spring water. People often assume a spring source means fewer particles, or that heavy purification does. In several studies, though, a large share of the identified particles matched bottle or cap polymers such as PET and polypropylene, and every one of these brands uses a plastic bottle and cap.

That means you can’t place Poland Spring above or below them. The brands were never sampled together with the same method, and the 1.9 per liter screening used a far coarser visual count than Mason’s staining method. Subtracting one from the other would compare two different instruments, not two waters. Our Dasani review goes through the tested lots in detail.

What makes bottled water shed more particles?

These findings come from studies of PET bottles generally, not Poland Spring, but they apply to any brand in the same container:

• Opening and closing the cap. Winkler and colleagues (2019) found particles on the neck and cap increased with repeated opening, and that cap abrasion varied a lot between brands. Our review of bottle caps and microplastics covers that work.
• Heat. A 2026 study of eight US PET-bottled brands reported nanoparticle counts rising 9.29-fold after heating to 60 °C with shaking. Not every particle in that count was confirmed plastic. See water left in a hot car.
• Time in the bottle. Multipacks often sit for months. Antimony climbs slowly in PET over time, which is a chemical marker of the bottle interacting with the water.
• Refilling and squeezing. Single-use bottles aren’t designed for repeated washing or crushing.

Is Poland Spring safe to drink?

On the regulated contaminants, its 2025 report gives no cause for concern. Arsenic, lead, antimony, the listed PFAS and the volatile organic compounds are not detected, coliform bacteria are absent, and detected minerals such as calcium and sodium are low. Nitrate shows up at up to 0.92 mg/L against a limit of 10. These are the standards the FDA applies to bottled water.

Microplastics sit outside that system. There is no federal limit or required test, so a clean report neither confirms nor rules them out. The sensible conclusion is narrow: Poland Spring meets the drinking water standards that exist, and its particle content is unmeasured, like most brands. If bottled water is what you have, drink it. Staying hydrated matters more than an unquantified particle difference between brands, and the steps below cut contact with plastic without giving anything up.

What the evidence does not establish

• A Poland Spring particle count. The 1.9 per liter screening is one visual count without polymer confirmation. It doesn’t show Poland Spring is lower than other brands.
• That microfiltration removes microplastics from what you drink. The pore size isn’t published, and the bottle and cap come after the filter.
• That 240,000 particles per liter applies to Poland Spring. Those brands were never named.
• A health effect at these levels. The FDA says current scientific evidence does not demonstrate that the microplastics and nanoplastics detected in foods pose a risk to human health. Researchers are still working out dose, size and polymer effects.
• That aluminum or recycled PET is cleaner. Neither Poland Spring format has a published comparison.

A test that would settle the question needs several lots of the current bottle, a stated size range, polymer identification such as Raman or infrared spectroscopy, and procedural blanks. Nothing like that has been published for this brand.

What should you drink instead of Poland Spring?

1. Filtered tap water. A filter certified to NSF/ANSI 401 with a listed microplastics claim is the only home option with a published particle-reduction test, for a defined size range. Our water filter comparison lists which models carry it.
2. A reusable glass or steel bottle for carrying it. See the best glass water bottles.
3. If you keep buying Poland Spring, store cases somewhere cool and out of sunlight, don’t leave bottles in the car, and pour into a glass rather than reopening one bottle all day.
4. Don’t refill single-use bottles. Recycle them where you can.

To see how other brands compare on the evidence that actually exists, read our bottled water brands ranked guide. The water bottles hub collects the bottle, cap and filter guides in one place.