Glass Milk Bottles vs Plastic: Is There Really a Difference? | JKL Dairy

A pint of milk, twice a week. Doesn't sound like much — until you add it up.

glass milk bottle vs plastic?

The average UK household gets through around three pints of milk a week. If that comes in plastic bottles from a supermarket, you're looking at roughly 150 plastic bottles a year per household. Most of them will end up in landfill or, at best, downcycled into something that can't be recycled again.

It's not a dramatic statistic. But multiply it across a street, a village, a town — and you start to see why this seemingly small choice has a surprisingly large footprint.

What happens to a glass milk bottle?

When you leave your empties out after a JKL Dairy delivery, they don't go into the recycling bin. They go back on the van, back to be washed and sterilised, and back out on the round again. A single glass milk bottle can be reused dozens of times before it needs to be recycled — and when it is recycled, glass is 100% recyclable without any loss of quality.

It's one of the genuinely closed loops that still exists in modern food supply — and it's one of the reasons a lot of our customers tell us they feel good about switching.

But is the milk any different?

Yes, actually. Our milk comes from Cotteswold Dairy — a family-run British dairy committed to working closely with the farmers they source from. It's gently pasteurised (rather than UHT treated, which is what gives supermarket milk its longer shelf life but also that slightly flat taste) and it reaches your doorstep within 24 hours of bottling.

If you've ever had milk that tasted noticeably creamier and fresher, it's probably because it was. Freshness and minimal processing make a real difference.

Supporting British farmers

Every pint of Cotteswold milk delivered by JKL Dairy is sourced from British farms. In an era when supermarkets have a long and complicated history with dairy farmer pricing, buying local and buying British matters. We're proud to be part of a supply chain that's shorter, more transparent, and better for the people at the start of it.

Small swaps, real impact

So, glass bottles vs plastic milk — is it worth the switch?

For most households, yes — and it's easier than you'd think.

We're not going to tell you that switching your milk is going to save the planet on its own. But it is one of those household changes that's genuinely easy, costs about the same as supermarket milk, and has a measurable, positive impact — especially when you consider the reusable packaging, the reduced food miles, and the support for British agriculture.

Plus, honestly, it just tastes better. And it's on your doorstep before you're awake.

→ Find out more about where our milk comes from at jkldairy.co.uk/our-milk — or register to start your delivery today.