Quantum Coffee Roasters
380 Reviews
$$$$
- Friday8 am–4 pm
- Saturday9 am–4 pm
- Sunday10 am–4 pm
- MondayClosed
- Tuesday8 am–4 pm
- Wednesday8 am–4 pm
- Thursday8 am–4 pm
About the Business
Quantum Coffee Roasters, Cafe and Online Store, Coffee Subscriptions – Quantum Roasters | We source it from the best ethical farms across the globe. We hand roast it in Cardiff, we serve it in our cafe and sell it through our online store. We have an array of coffee gear, loose leaf teas and a great coffee subscription service.
Contacts
Call Us
+447413543335
58 Bute St, Cardiff CF10 5BN
Hours
- Friday8 am–4 pm
- Saturday9 am–4 pm
- Sunday10 am–4 pm
- MondayClosed
- Tuesday8 am–4 pm
- Wednesday8 am–4 pm
- Thursday8 am–4 pm
Features
- Debit cards
- NFC mobile payments
- Credit cards
- Delivery
- Wheelchair-accessible entrance
- Wheelchair-accessible toilet
- Wheelchair-accessible seating
- Wi-Fi
- Dine-in
- Takeaway
- Coffee
- Free water refills
- Vegan options
- Vegetarian options
- Dessert
- Seating
- Toilets
- Cosy
- Family friendly
- Groups
- Accepts reservations
- High chairs
- Lunch
- Casual
- Great tea selection
- Gender-neutral toilets
Recommended Reviews
André Salvatierra
07.03.2024
Quantum Coffee Roasters
Warm, friendly staff, really nice and welcoming atmosphere. We ordered two V60s that were unfortunately not well done: watery, bland, and one was more unpleasant than the other, while the other had a noticeable papery taste to it.
Anna Pascal
18.02.2024
Quantum Coffee Roasters
A pleasant place with very tasty coffee and a relaxing atmosphere. Here you can also have a healthy and nutritious breakfast.
Riley Tang
26.01.2024
Quantum Coffee Roasters
I had a pleasant time in the cafe. Wonderful Nitro Cold Brew with delectable blueberry muffin. The overall atmosphere felt cosy and the baristas were welcoming and helpful.
Anna
25.01.2024
Quantum Coffee Roasters
Good atmosphere. Have an hour work rule where you will need to buy something after an hour. Coffee was good. They could have sugar free syrups... didn't see any advertised although they may have some.
Abdullah Alshammari
19.01.2024
Quantum Coffee Roasters
The best coffee I have had in Cardiff, I order V60 it was great.
Harry Steel
18.01.2024
Quantum Coffee Roasters
Had a trip down to Cardiff bay for a short break and was anxious I wouldn’t be able to get my usual morning coffee fix.After a quick google, we found Quantum Coffee Roasters and decided to give it a go.Service was excellent- friendly, helpful, didn’t feel rushed or pressured. Ordering was painless, easy, and enjoyable. The atmosphere was calm and cosy. I had second thoughts about getting a take out!And, mostly importantly, the coffee was great. Really excellent. Not bitter, not sour, bang in the sweet spot. The oat milk was also steamed to the right temperature. Which quite a few coffee shops seem to get wrong and burn the milk (and my tongue!).We managed to visit twice during our stay, and both times were exactly the same. Even with different baristas on both days. Always friendly and made perfect coffee.It’s a shame that Quantum Coffee Roasters isn’t near my home!!Will definitely be visiting again the next time I’m in Cardiff bay. Couldn’t recommend highly enough.
G C
28.12.2023
Quantum Coffee Roasters
Nice cafe just round the corner from Cardiff Bay. Friendly staff and very relaxing atmosphere. They carry a variety of beans although they are for sale and you can’t choose what your coffee is made of.On my visit the only choice for a drip (filter) coffee is from Yunnan China. Coffee was nicely brewed but a little too weak for my taste. I still enjoyed it though. It’s always nice to have freshly ground and brewed coffee.
Emily Green
21.12.2023
Quantum Coffee Roasters
My husband and I started to regularly sit in during my pregnancy rather than ordering to take away, and I now often come back with my baby whilst on maternity leave. One of the main reasons for this - aside from the great coffee - is the staff. Ruby in particular is incredibly friendly and welcoming, as is the other female member of staff with blonde hair. I feel extremely comfortable breastfeeding in there, and always have a friendly welcome (much appreciated in these early days of motherhood!). Excellent coffee and a brilliant atmosphere. Could not recommend highly enough!
Simon Chew
20.12.2023
Quantum Coffee Roasters
Been using Quantum for some time, mainly ordering coffee beans online and also been into the shop in Cardiff Bay. Really like their coffee, it is priced reasonably and they are reliable. Can’t ask for any more than that really!Their shop in Cardiff Bay has a nice aesthetic and good selection of food items.
Mark McKerracher
17.12.2023
Quantum Coffee Roasters
I don’t mind a tiny flat white but I abhor one that tastes more of milk than coffee. Flat whites should be at least two shots and have a strong taste of coffee. Am I wrong? Disappointed coffee drinker.
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58 Bute St, Cardiff CF10 5BN
Quantum Coffee Roasters