70Good

Do Simple Modern portable water bottles have PFAS?

The verdict
Simple Modern portable water bottles average 70 out of 100 on PFAS Authority's PFAS and toxin screen across the 4 Simple Modern portable water bottles graded as of October 2026, below the 72 out of 100 median for the 15 other portable water bottles brands graded alongside it.
Free to quote with attribution to PFAS Authority and a link to pfasauthority.com/brands/simple-modern/portable-water-bottles.

Simple Modern portable water bottles average Good on our four-band scale. 4 of the 4 we graded are worth buying. That is above 23% of the portable water bottles brands we grade.

PFAS Authority is a scoring system, not a laboratory. We do not test products ourselves. Grades are model-based, built from published ingredients, materials, certifications, brand disclosures and third-party lab results where they exist. See the rubric.

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Top-graded picks in the categories readers replace first, every one scored on the same rubric.

  • polypropylene filter housing, carbon/sediment cartridge
  • We found no PFAS statement from the brand
  • Bacterial growth in spent cartridges

3 hazards checked on this product, all on its full breakdown.

  • RO membrane, carbon filters, stainless steel housing
  • We found no PFAS statement from the brand
  • Bacterial and microbial growth in housing and filters

4 hazards checked on this product, all on its full breakdown.

Avocado Vegan Mattress

Avocado

Vegan Mattress

100ExcellentPFAS grade
✓ MADE SAFE Certified✓ Global Organic Textile Standard (GOTS)
  • organic cotton, natural latex, coconut coir, recycled steel coils
  • The brand calls it PFAS-free, which we have not verified
  • Heavy metals

2 hazards checked on this product, all on its full breakdown.

Simple Modern portable water bottles worth buying Good or better, best-graded first

  • BPA-free plastic (Tritan or similar copolyester)
  • We found no PFAS statement from the brand
  • Plasticizer leaching under heat stress. Tritan does not contain BPA, but copolyesters may release trace…

3 hazards checked on this product, all on its full breakdown.

Simple Modern Filtered Water Bottle

Simple Modern

Filtered Water Bottle

70GoodPFAS grade
  • Stainless steel with carbon/activated charcoal filter
  • We found no PFAS statement from the brand
  • Bacterial colonization in filter media. Activated charcoal is a high-surface-area material that can support…

2 hazards checked on this product, all on its full breakdown.

Simple Modern Summit Water Bottle

Simple Modern

Summit Water Bottle

70GoodPFAS grade
  • stainless steel bottle, plastic lid
  • We found no PFAS statement from the brand
  • Bacterial growth in lid and seal. Plastic lids and threaded caps on all reusable bottles can harbor mold…
Simple Modern Mesa Loop Water Bottle with Straw

Simple Modern

Mesa Loop Water Bottle with Straw

70GoodPFAS grade
  • Stainless steel body, plastic lid/straw
  • We found no PFAS statement from the brand
  • Plastic lid/straw leaching under heat. Plastic components (likely polypropylene or similar) may release trace…

2 hazards checked on this product, all on its full breakdown.

Better portable water bottles from other brands

Graded higher than the Simple Modern average of 70.

Klean Kanteen 27oz Wide Water Bottle with Loop Cap

Klean Kanteen

27oz Wide Water Bottle with Loop Cap

100ExcellentPFAS grade
  • 18/8 stainless steel, no interior coating
  • The brand calls it PFAS-free, which we have not verified
  • Cap or closure contamination

2 hazards checked on this product, all on its full breakdown.

Klean Kanteen Rise Classic Insulated Water Bottle

Klean Kanteen

Rise Classic Insulated Water Bottle

100ExcellentPFAS grade
  • stainless steel body, foam insulation, stainless steel cap
  • The brand calls it PFAS-free, which we have not verified
  • Cap gasket and seal contamination

HydroJug

Traveler 40 oz Stainless Steel Water Bottle

95ExcellentPFAS grade
  • Stainless steel body, no coating disclosed
  • We found no PFAS statement from the brand
  • Bacterial or mold growth in storage

3 hazards checked on this product, all on its full breakdown.

The same question, asked of the other portable water bottles brands

Best average grade first. Simple Modern averages 70.

See every Simple Modern product we grade on the Simple Modern brand page, or the full portable water bottles ranking.