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Sustain Coffee

At Sustain Coffee, our passion for exceptional coffee takes us from the heart of Hatfield to coffee farms across the globe.

We personally visit and build lasting relationships with growers, ensuring every bean we source is truly special. Each batch is expertly roasted right here in Hertfordshire, creating unique single origin and blended coffees you won’t find anywhere else in the UK.

Our deep industry experience inspires us to champion ethical sourcing, sustainable roasting, and eco-friendly packaging —always honouring the land and the people behind every cup!

The Sustain Experience

When you visit the shop, there’s a good chance you’ll see one of us roasting (or smell it as you walk around Old Hatfield!). You might see Amber typing away on the computer, Haru packing up orders, Millie working out the best recipe for a filter coffee, or all of us standing around a cupping table trying some new samples. You might hear some classic 70s rock or laid back indie tunes, or the sound of coffee grinders. You’ll definitely see some pallets of green coffee and our big red roaster!

Where do we source our beans?

We source our coffee from all over: mostly the Americas and East Africa, but sometimes also East Asia. Some of the farmers, like Gerado Arias, we know personally, and some are connected to us via importers like Falcon or Cata.

We spend a good amount of time trying new coffee samples we’ve been sent, and working out which ones we want to add to our lineup – sometimes it’ll be a full table of Kenyan coffees, sometimes Colombians, sometimes a complete mix!

What makes our roasting style unique?

The exact way we roast each coffee is different. We spend a lot of time profiling our coffees – first, very small roasts of about 100g to find what works best for the coffee, then scaling it up to batches of 700g, 3kg, or even 25kg! From those first roasts, we develop a consistent reference that we update and adapt when there are changes in the harvest, weather, or even the roaster itself. We use a roast colour meter and always try our coffees to ensure there’s consistency!

Meet the Sustain Team

Mo is the founder of Sustain. He’s worked in coffee for years, and is the driving force behind what we do.

Millie joined Sustain in early 2025, and handles most of our coffee sourcing and roasting. There’s a good chance Millie roasted the coffee you’re drinking right now!

Amber joined Sustain in summer 2025 and handles most of the emails, subscriptions and copy, as well as some of the roasting and packaging. It’ll probably be her that responds to your messages!

Haru joined Sustain this spring. He looks after the venue and handles most of the packaging. He’s somehow always the first to say hi when you walk in!

Crown is our marketing and SEO wizard. He's a freelancer that's working with us to help our coffee find more people, and make sure everything digital behind-the-scenes is working perfectly!

Conor has just joined the team as our cafe lead. He makes sure the coffee we serve in house is the best it can be, and is developing our cafe set up. He'll be the one serving you a beautiful swan flat white!