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Last updated: June 9, 2026

Types of Bottled Water: Spring, Purified, Distilled, Mineral

Walk down the water aisle and the labels read like a menu: spring, purified, distilled, mineral, artesian, alkaline. The marketing implies these are meaningfully different and that pricier ones are better, but the terms actually describe specific things, mostly about where the water comes from or how it was treated. Understanding what each label means takes the mystery out of the aisle and helps you pick based on what you actually want rather than on packaging.

Source vs Treatment: The Key Distinction

The single most useful idea for decoding bottled water labels is that some terms describe the water’s source and others describe how it was treated. Spring water, mineral water, and artesian water are defined by where the water comes from. Purified and distilled water are defined by how the water was processed. Once you see that split, the labels make far more sense, because you can tell whether a term is telling you about the origin or about the treatment.

This also explains why a purified water might originate from a municipal supply, as our bottled versus tap guide discusses, while a spring water is tied to a specific natural source. The terms answer different questions. One tells you the water’s history before bottling, the other tells you what was done to it.

The Source-Based Types

Spring water comes from an underground source that flows naturally to the surface, bottled at or near the spring, and it retains the minerals it naturally picked up underground. It is defined by that natural source. Artesian water comes from a confined aquifer where pressure pushes the water up, another source-based definition tied to a specific kind of underground source.

Mineral water contains a defined level of naturally occurring dissolved minerals and must come from a protected underground source, with those minerals present as the water emerges from the ground rather than added afterward. The particular minerals and their amounts vary by source, which is what gives different mineral waters their distinctive tastes, from barely-there to noticeably mineral. People often choose mineral or spring water for taste or for the minerals, though those minerals are a modest contributor to overall mineral intake.

The Treatment-Based Types

Purified water is defined by its treatment, not its source. It has been processed, often by reverse osmosis, distillation, or similar methods, to remove minerals and contaminants down to a defined purity standard. Because it is defined by the result of treatment, purified water can start from various sources, including municipal water, and end up very clean and consistent. It is a good choice when you want reliably pure, neutral-tasting water.

Distilled water is a specific type of purified water made by boiling water into steam and condensing it back, which leaves minerals and most contaminants behind. The result is very pure and mineral-free. Some find it tastes flat precisely because the flavor-giving minerals are gone, and it is often chosen for uses that need mineral-free water, like certain appliances and humidifiers, as our distilled water guides cover, as well as for drinking by those who prefer it.

Which to Choose

For everyday hydration in a healthy person, the differences among these types are mostly about source, minerals, and taste rather than meaningful health distinctions, so the best one is largely the one you like the taste of and that fits your need. If you enjoy a mineral flavor, mineral or spring water delivers it. If you want neutral, consistent purity, purified water fits. If you need mineral-free water for an appliance or simply prefer it, distilled is the pick. The minerals in mineral and spring water are a small part of your overall intake, so they are a taste consideration more than a nutrition strategy.

The practical takeaway is that no single type is the healthiest, and price does not track to health benefit. Any clean, safe drinking water keeps you hydrated, which is the real point. Decode the labels so you know whether you are buying based on source or treatment, pick the taste and practical fit you prefer, and do not let the marketing convince you that the most expensive bottle is meaningfully better for a healthy person just trying to drink some water.

Frequently Asked Questions

What is the difference between spring water and purified water?
Spring water comes from an underground source that flows naturally to the surface and is bottled at or near the spring, retaining its naturally occurring minerals. Purified water is water, often from a municipal or other source, that has been treated by processes like reverse osmosis or distillation to remove minerals and contaminants to a defined purity standard. Spring water is defined by its source, while purified water is defined by its treatment, so they describe different things.
Is distilled water safe to drink?
Distilled water is safe to drink. It is water that has been boiled into steam and condensed back, leaving behind minerals and most contaminants, so it is very pure. Some people find it tastes flat because the minerals that give water flavor are gone. It is commonly used where mineral-free water is wanted, such as in appliances, and it is fine for drinking, though many people prefer the taste of water that still contains some minerals.
What is mineral water?
Mineral water contains a defined level of naturally occurring dissolved minerals from its source and must come from a protected underground source, with the minerals present as the water comes from the ground rather than added later. The specific minerals and their levels vary by source and give different mineral waters their distinct tastes. People often choose mineral water for taste or for the minerals, though it is one of many fine options for hydration.
Which type of bottled water is healthiest?
For a healthy person staying hydrated, there is no single healthiest type, and the differences between spring, purified, mineral, and distilled water are mostly about source, minerals, and taste rather than meaningful health differences. The minerals in mineral or spring water are a small contributor to overall intake. Choose based on taste preference and practical needs. Any clean, safe drinking water keeps you hydrated, which is the main goal.