Quantum Coffee Roasters — Restaurant in Wales

Very expensive. The nitro cold brew was quite bitter on its own and you are apparently not allowed any milk with it. (Please see the below issue in depth below). I was disappointed when I attended today as I was excited to try this place out, it looks fab from outside. I think going forward I will stick to my usual location of Academy, which is a shame.

Myself and my flatmate went in early this morning as a treat to get some Nitro Cold Brew to take away. We never had been before and it looks fab so always wanted to try it. We asked if we could get the Nitro Cold Brew with oat milk in it as well. The server said yes that would be fine (I remember specifically, as there was initially confusion where we thought they said they didn’t think it was available but they clarified after the second server started pouring the cold brew to test the tap and the initial server said ‘oh sorry I meant I wasn’t sure if the Nitro cold brew was ready this early yet, not that you couldn’t add oat milk - that will be fine.’ So we each paid the extra 40p to have this (total on my banking app was £4.20, on the board the nitro was £3.80). However when the nitro was poured, I said to the other server whether they could please add the oat milk and they said that it doesn’t go with the cold brew and we couldn’t have it. I explained that I was confused as I thought my flatmate and I ordered it, only for the first server to turn around and explain that we actually had said we were fine with it normal and that we were confused as ‘yes it doesn’t go with the nitro cold brew.’ Therefore my flatmate and I were both disappointed but left, confused but had been convinced that maybe we had imagined it. However, we left checking our banking apps and both saying to each other that we definitely were sure we were told yes to oat milk and we were both charged for it. Therefore, it made me think the first server didn’t want to admit they were confused and changed their explanation.

To top it off when we were chitchatting, I said that we managed to get up early because we were excited to go out and get food - and the first server immediately assumed it was because we were hung over - asking if we had a good night and if it was worth it. (Which I laughed off but didn’t feel it was appropriate, especially as it was incorrect).

I wouldn’t normally leave such a negative review over a small thing, as usually I would have happily have drank another coffee instead without even mentioning it. However the whole interaction made me feel oddly small and doubting myself - so I thought it worth mentioning to please possibly avoid anyone else feeling this in...

No savory food available whatsoever when visiting the café. And Katia was exceptionally rude about me having my own sandwich even though both my partner and I had spent £3.50 each on hot drinks that were served in small 8oz cups and sadly didn’t taste all that good.

I honestly wouldn’t have even minded respectfully putting my own food away when asked, had Katia not been so offensive in the manner in which she asked.

Won’t be returning. And have even noticed multiple trip advisor reviews highlighting a red head staff member and her appalling conduct toward customers. Katia has the red hair.

Having previously managed a team in the hospitality industry, I strongly advise this individual gets retrained on the way she conducts herself and speaks to paying customers. Even more so if she happens to be the owner of this establishment.

UPDATE, in response to Dimitris.

“You do not make excuses for your policy on food” yet you had no food available.

As stated above. I’d have respectfully put my own food away and initially did. But it then dawned on me how disgusting the manner in which your colleague spoke to a paying customer.

It’s laughable that you think I was abusive. I merely made Katia aware that her conduct was abhorrent, entitled and rude. Then she lied multiple times about what she said to us. To which I just repeated myself more emphatically.

Oh and Dimitris, you can distort the facts as much as you like. It was one and only one customer who, with no context of the situation whatsoever, decided to chime in asking me to leave it be.

And as for my partner, she merely didn’t want me to risk getting stressed as I have a heart condition.

Additionally, the defensive nature of your replies to negative reviews on here, where you take no accountability and are constantly projecting is very telling indeed.

But you carry on running your buisness as you do. The fact that there are so so many reviews both on here and Trip Advisor that flag how rude the at staff your establishment are, is proof enough that there is something very wrong with what you consider acceptable...

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...