Kirkland Signature vs Hallstein: which water is healthier?

Updated · Scores from third-party lab reports · How we score

Hallstein is the healthier choice, scoring 86/100 versus 63/100 for Kirkland Signature. The biggest differences are packaging material and water source.

Kirkland Signature Purified Water Plastic Bottle

Kirkland Signature

Kirkland Signature Purified Water Plastic Bottle

63
Hallstein Water Glass Bottle

Hallstein

Hallstein Water Glass Bottle

86

Side-by-side comparison

Kirkland SignatureHallstein
Purity score63/10086/100
Product comparedKirkland Signature Purified Water Plastic BottleHallstein Water Glass Bottle
TypeStillStill
Water sourceMunicipal SupplyAquifer
PackagingPlasticGlass
Microplastics riskHighLow
Lab testedYesYes
PFAS testedYesYes
Contaminants flagged12
pH5.98.6
TDS (minerals)—98 ppm
Fluoride0 mg/L0 mg/L

Score breakdown

FactorKirkland SignatureHallstein
Lab report indexed45/4545/45
Contaminants17/5026/50
Water source15/2525/25
Mineral preservation17/1717/17
Packaging material2/2222/22
Cap material7/77/7
PFAS testing5/55/5

Each brand is represented by its most popular product. See all products from Kirkland Signature and Hallstein.

Frequently asked questions

Which is better, Kirkland Signature or Hallstein?

Hallstein is the healthier choice, scoring 86/100 versus 63/100 for Kirkland Signature. The biggest differences are packaging material and water source.

Is Kirkland Signature or Hallstein better for avoiding microplastics?

Kirkland Signature (plastic) has a high microplastics risk and Hallstein (glass) has a low risk, based on packaging material.

Which has more minerals, Kirkland Signature or Hallstein?

Total dissolved solids (TDS) is not reported for both products, so check each product page for its mineral list.

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