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Spring Water vs. Purified Water: Which Should You Drink?

Quick Summary: Spring water and purified water are the two most common bottled water categories, and the difference comes down to minerals. Spring water must come from an underground spring and keeps most of its naturally occurring minerals after filtration; purified water has been through deionization, reverse osmosis, or distillation and is nearly mineral-free. Which is better depends on taste preference and use — minerals for drinking, purity for appliances. This guide covers the FDA definitions, when each type makes sense, and how a filtration system can give your Ontario home high-quality water without the bottles.

3 minute read

Buying bottled water at the store can present an almost overwhelming number of options. With labels like deionized, purified, distilled, and spring, you won’t be alone in feeling a little lost about the right choice. It helps to know what these labels mean — and how they affect the taste and quality of the water inside. According to the FDA, bottled water falls into one of three categories based on source and level of filtration:

  1. Spring water
  2. Mineral water
  3. Purified water

What Is Spring Water?

To be classified as natural spring water, the FDA requires that water come from an underground well or spring. Once collected, it must be filtered before bottling — but spring water filtration is designed to leave most of the naturally occurring minerals in place. That mineral content is what gives spring water its characteristic taste, and it’s why many people prefer it: you get the benefits of mineral-rich water without the contaminants.

What Is Purified Water?

To be classified as purified, the FDA requires water to have gone through one of three purification processes: deionization, reverse osmosis, or distillation. Each removes all but the most basic water molecules, so you end up with water in its most elemental form. When a bottle label says “deionized” or “reverse osmosis water,” that’s your clue the water is purified to FDA bottled-water standards. (Curious how those processes differ? See our guide to deionized vs. distilled water.)

The simplest way to choose: spring water is about what stays IN the water — natural minerals and taste. Purified water is about what comes OUT — near-total removal of everything but H2O. Neither is wrong; they’re built for different jobs.

Spring Water vs. Purified Water: Which Should You Choose?

The decision usually comes down to preference and use. If you want beneficial minerals in your daily routine, spring water is the natural pick. If you prefer a cleaner, lighter taste, purified water delivers it. And if you’re filling appliances — CPAP machines, humidifiers, irons, diffusers — purified water is the wiser choice: the minerals in spring water slow down and complicate most water-based devices, leaving deposits behind.

Spring vs. Purified Water FAQs

Is spring water healthier than purified water?

Both are safe and regulated. Spring water contributes small amounts of calcium and magnesium to your diet; purified water offers the highest certainty that contaminants are gone. For most people the difference is taste, not health.

Is purified water the same as distilled water?

Distilled water is one kind of purified water — purification can also be done by reverse osmosis or deionization. All three meet the same FDA purity standard by different routes.

Can I get purified water without buying bottles?

Yes — that’s exactly what home filtration does. A reverse osmosis system at your kitchen sink produces purified drinking water on demand, and a mineral boost stage can add healthy minerals back for a spring-like taste.

Great Water at Every Tap — No Bottles Required

If you want dependable, great-tasting water all over your home, a point-of-entry system like our whole-house water filters can eliminate reliance on bottled water entirely — turning your Ontario tap water into high-quality drinking water at every fixture. Prefer the cooler experience? Bottle-free water coolers deliver filtered water on demand without the plastic waste of jugs and cases.

Not sure which fits your household? Schedule a free in-home water test and a Culligan of Ontario water expert will show you exactly what’s in your tap water — and the simplest way to make it the water you actually want to drink.