Bottled Water, Tap Water… or Is the Problem the Bottle?

Walk into any supermarket and you will see shelves stacked high with bottled water. Still, sparkling, flavoured, mineral, glacier, alpine… it sometimes looks as if water has become a luxury product rather than the simple substance that falls freely from the sky.

But the real question isn’t “Which water is better?”

It may actually be “Which container is better?”

Tap Water in the UK – Surprisingly Good

For many people travelling abroad, bottled water is a necessity because tap water may not be safe to drink. But in the UK the situation is very different.

UK tap water is one of the most strictly monitored food products in the country. Water companies must meet tight standards for:

• Bacteria

• Heavy metals

• Chemical contaminants

• Taste and clarity

In fact, tap water is tested far more frequently than bottled water. Millions of tests are conducted each year to ensure it is safe.

And the price difference is staggering.

Typical UK tap water costs around £0.003 per litre, while bottled water can cost £0.50 to £2 per litre.

That means bottled water can be hundreds of times more expensive than what comes out of your kitchen tap.

So Why Do People Buy Bottled Water?

There are a few reasons:

• Convenience when travelling

• Perception that it tastes better

• Marketing suggesting it is “purer”

• Sparkling water options

But the environmental cost is significant.

Plastic bottles require:

• Oil to manufacture

• Energy to produce

• Transport emissions to deliver

• Recycling or landfill after use

Globally, millions of plastic bottles are produced every minute.

The Hidden Issue: Microplastics

Recent research suggests the bigger issue may not be the water at all — it may be the container.

Many bottled waters contain microplastic particles, tiny fragments shed from plastic bottles and caps. These particles can enter the water during manufacturing, transport, or when bottles are exposed to heat.

Even reusable plastic bottles can release microplastics over time.

Scientists are still studying what long-term exposure might mean for human health, but it raises an interesting point:

The problem may not be the water — it may be the packaging.

A Simple Greener Solution

For most people in the UK, the most sustainable option is simple:

• Drink tap water

• Use a reusable bottle

• If taste is an issue, use a simple carbon filter jug

Better still, use a stainless steel or glass bottle, which avoids plastic completely.

My Own Approach

With solar panels and battery storage at home, I try to keep my environmental footprint as low as possible. Water is one of the easiest wins.

At home we simply drink tap water, sometimes chilled in the fridge, sometimes with ice and use safe reusable bottles when travelling or sailing.

It’s cheaper, easier, and produces almost zero waste.

Sometimes the greenest technology isn’t high-tech at all.

It’s just turning on the tap.