Alkaline Water: What It Is, What the Evidence Says, and What to Expect

Alkaline water has attracted a lot of attention in recent years. Here's an honest, balanced look at what it is, what the evidence actually supports, and how our filters produce it.

Browse our 8-stage KDF filter range, see our Benchtop Water Filters Guide, or our Water Coolers Guide. For comparison with other filtration methods, see our Reverse Osmosis Guide.

What Is Alkaline Water?

Alkaline water has a pH above 7 (neutral). Most Australian tap water sits between pH 6.5 and 8.5. Our 8-stage KDF filter systems include mineral stone stages — Maifan stones, Prill Beads, and bio ceramic balls — that release calcium, magnesium, and other trace minerals into the water, raising the pH to approximately 7.5–8.5.

This is different from ionised alkaline water produced by electric water ionisers, which use electrolysis to raise pH artificially.

What the Evidence Says

The filtration benefits of our 8-stage systems are well established — removing chlorine, heavy metals, sediment, and bacteria produces genuinely cleaner, better-tasting water. The mineral stages add beneficial calcium and magnesium, which contribute to mineral intake alongside diet.

Specific health claims around alkaline water — such as anti-ageing effects, cancer prevention, or immune system enhancement — are not supported by current clinical evidence. We don't make those claims, and we'd encourage scepticism of any brand that does.

What's clear: filtered, mineralised water tastes better than unfiltered chlorinated tap water, and better-tasting water means people drink more of it — which is genuinely good for health.

Alkaline Water and Body pH

Your body tightly regulates blood pH regardless of what you eat or drink — the kidneys and lungs maintain blood pH within a very narrow range (7.35–7.45). Drinking alkaline water doesn't meaningfully change blood pH. What it can do is contribute to mineral intake (calcium, magnesium) and improve hydration by making water more palatable.

Frequently Asked Questions