About

In the vibrant streets of Cardiff, Quantum Coffee Roasters is more than just your average coffee house. This family-owned gem offers a cozy and fashionably casual atmosphere, perfect for a solo dining experience or a delightful family breakfast. With dishes styled around their signature Tiger Bay blend, each cup is a testament to a balance of flavor, science, and sustainability.

Enjoy the rich taste of their popular dark chocolate mocha, hand-crafted using the V60 pour-over method. While sipping, engage with their knowledgeable and friendly staff always ready to share insights about their carefully hand-roasted beans.

Quantum Coffee Roasters doesn't just serve coffee; its menu includes delicious desserts and an array of teas for the non-coffee drinkers. The free Wi-Fi makes it a perfect spot for those who need a cozy corner to work or decompress. Known for quick service and welcoming vibes, it's a popular spot among both locals and tourists, who rave about their experiences. All meals remain remarkably affordable, ranging between just 1 to 10 GBP, embodying true value for a memorable start to your day.

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Price

$$$$ 1 - 10 GBP

Meals

Breakfast

Services

Takeaway, Dine-in

Offering

Serving desserts, Serving coffee

Payment

Payment by credit card, Payment by debit card, NFC payment

Atmosphere

Fashionably, Casual, Cozy

Reviews and Ratings

Write a review
4.6
based on 275 reviews
4.2/5 48 reviews
4.7/5 227 reviews
Grahame Irwin
Grahame Irwin
4 weeks ago on Google
  • Food: 5
  • Atmosphere: 5

In my opinion the best coffee in Cardiff. The shop is light, bright and has a great view of the castle. I recommend the v60 pour over, it's brilliant. Toasted teacakes are also good. You always get a warm welcome and the staff are so knowledgeable and friendly. This is one of my favourite places in Cardiff.

Laurent Marcellin
Laurent Marcellin
4 weeks ago on Google
  • Food: 4
  • Service: 4
  • Atmosphere: 4

Juste à côté du magasin geek Forbidden Planet, une pause gourmande bienvenue, mention spéciale latte glacé au Bischoff (une poudre de biscuit à la cannelle façon Lotus qu'on sert souvent avec les cafés), c'est très goûteux et on en trouve de plus en plus au Royaume-Uni mais c'était une première pour moi !

Katy Franklin
Katy Franklin
2 months ago on Google
  • Food: 5
  • Service: 5
  • Atmosphere: 5

The nicest coffee I’ve ever had! Staff were so lovely and attentive. Would recommend a visit! We will be back next time we are in Cardiff

Frequently Asked Questions

  • What is the address of Quantum Coffee Roasters?
    Quantum Coffee Roasters is located at 6-7 Duke St, CF10 1AY, Cardiff, United Kingdom.
  • How to get here by public transport?
    The nearest public transport options provide quick and easy access:
    • Bus stop Kingsway Hilton (Stop GP) (201 m walk)
    • Bus stop Castle Stop KA (97 m walk)
    • Bus stop Kingsway (Stop GR) (133 m walk)
    • Bus stop Castle Street (186 m walk)
  • How is Quantum Coffee Roasters rated by visitors?
    Quantum Coffee Roasters has an average rating of 4.6 based on 275 reviews across platforms such as Google, Facebook.
  • What is the average price for a meal at Quantum Coffee Roasters?
    The average price for a meal is 1 - 10 GBP (it is cheap - $).
  • Is the venue pet-friendly?
    Quantum Coffee Roasters is pet-friendly, but pets are allowed only in outdoor areas.