First Street Purified drinking water

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Common questions

Is First Street Purified drinking water healthy?

First Street Purified drinking water scores 70/100 on Scout's independent analysis of ingredients, additives, and lab results — a fair-to-good score — solid, with tradeoffs. This purified drinking water includes beneficial minerals like magnesium sulfate, potassium bicarbonate, and potassium chloride, which enhance its mineral content and taste.

How processed is First Street Purified drinking water?

First Street Purified drinking water is NOVA Group 1: Unprocessed or Minimally Processed Foods.

Which ingredients drive First Street Purified drinking water's score?

In Scout's ingredient-by-ingredient analysis, Potassium bicarbonate counts in its favor. The full breakdown, with why each one matters, is in the Key ingredients section on this page.

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First Street Purified drinking water

First Street
70 Good

Analysis updated August 2026 · How Scout scores

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At a glance

Beneficial ingredients 1
Harmful ingredients 0
Owned by Smart & Final
Category Bottled Water
Summary

This purified drinking water includes beneficial minerals like magnesium sulfate, potassium bicarbonate, and potassium chloride, which enhance its mineral content and taste. However, the use of purified water rather than a natural source like spring or aquifer water results in a slight penalty. The product's minimal processing and absence of harmful contaminants contribute positively to its score.

Key ingredients 4

Potassium bicarbonate
Good

Potassium bicarbonate is used to regulate acidity and provide essential potassium. It is a common additive in bottled water to enhance mineral balance and taste. This ingredient supports cardiovascular health by contributing to the body's potassium levels.

Risks

High doses may cause gastrointestinal discomfort or hyperkalemia in sensitive individuals.

Benefits

Supports cardiovascular health and helps maintain electrolyte balance.

See more about Potassium bicarbonate →
Purified water
Neutral

Standard formulation ingredient — neither beneficial nor harmful at typical use.

Benefits

Provides essential hydration and supports various bodily functions without introducing contaminants.

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Magnesium sulfate
Neutral

Standard formulation ingredient — neither beneficial nor harmful at typical use.

Risks

Excessive intake may lead to digestive issues such as diarrhea.

Benefits

Contributes to muscle and nerve function and can improve the taste of water.

See more about Magnesium sulfate →
Potassium chloride
Neutral

Standard formulation ingredient — neither beneficial nor harmful at typical use.

Risks

Excessive consumption can lead to hyperkalemia, especially in individuals with kidney issues.

Benefits

Supports heart function and helps maintain fluid and electrolyte balance.

See more about Potassium chloride →

Processing

Group 1 · Minimally processed

Unprocessed or Minimally Processed Foods

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