Guest Roasters

Celebrating the UK's Best Independent Roasters

At Light Bulb Coffee, we're passionate about great coffee — and that means shining a light on the incredible independent roasters crafting exceptional beans right here in the UK. Our Guest Roasters programme brings a rotating selection of the finest local roasters right to your cup.

Who Are Our Guest Roasters?

We carefully select guest roasters who share our commitment to quality, sustainability, and flavour. From single-origin speciality beans to unique seasonal blends, each guest roaster brings something truly special to our menu.

Our Current Guest Roasters

Handful Coffee

Handful Coffee is a family-run micro-roaster based in Salisbury, UK. Passionate about coffee and dedicated to crafting exceptional experiences one small batch at a time, they believe every cup should be a memorable experience that highlights the unique flavours and stories of each bean.

Roasting in small batches with a focus on light roasts, Handful let each bean's natural flavours shine — from bright citrus to delicate florals. They source coffees they genuinely love and roast them with care to share their best flavours with you.

Dosed Coffee

Dosed Coffee is a Wiltshire-based roastery with a simple ethos: coffee roasted by people, for people. Founded by John Watson — owner of The Conditioning Club — and led by experienced barista Tom Beau Smith (formerly of Swindon's beloved Pour Bois), Dosed brings together a love of great coffee and a real community spirit.

With a team as characterful as their beans, Dosed is all about honest, quality coffee rooted in the heart of Wiltshire.

Taste It in the Cup

When you visit us, you can enjoy drinks made with beans from our current guest roasters — whether that's a beautifully pulled espresso, a smooth flat white, or a carefully brewed filter coffee. Our baristas are always happy to tell you more about the beans behind your brew.

Take the Beans Home

Love what you're tasting? You can purchase whole beans from our guest roasters to enjoy at home. Whether you're a seasoned home brewer or just starting your coffee journey, we'll help you find the perfect roast for your taste and brewing method.

Pop in and ask our team about our current guest roasters — we'd love to introduce you to your next favourite coffee.