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The name earns its meaning — this is not a place built around spectacle. What it has instead is a record that is difficult to argue with: 144 Google reviews averaging a perfect five stars, which in a neighborhood saturated with cafés is a signal worth paying attention to.\n\nHoan Kiem draws two types of coffee drinkers. The first is the tourist working through a list of lakeside spots, prioritizing views over the cup. The second wants a reliable pour in a room that does not demand anything from them. Mellow Coffee serves the second type well. The alley address keeps walk-in volume low enough that the experience stays consistent, and the rating pattern — high volume, no dip — suggests the kitchen and bar hold their standard across shifts.\n\nWithout a published menu to cite, the specific draw remains the coffee itself and the atmosphere that the name implies. In a district where many cafés compete on interior design or Instagram backdrops, a venue that accumulates this kind of review density without obvious gimmick is holding onto something more durable: regulars. The Hoan Kiem location makes it accessible from the old quarter without being inside the noise of it, which is its own quiet advantage.",{"Friday":378,"Monday":380,"Saturday":381,"Sunday":382,"Thursday":383,"Tuesday":384,"Wednesday":385},[379],"9 AM–6 PM",[379],[379],[379],[379],[379],[379],"+84 348 252 474",{},"moderate","#C99B4A",144,{"average_rating":251,"distribution":392,"items":394,"total_count":390},{"1":393,"2":393,"3":393,"4":393,"5":393},0,[],[396,406,413,420,431],{"categories":397,"id":401,"primary_image":402,"rating":251,"slug":403,"title":404},[13,398,399,400],"Coffee store","Souvenir store","Tea store","13e25f17-bc4f-4413-b199-4320ba238d84","https://images.thaodien.app/images/tornado-coffee/google_maps/1f065178fe1e7085.jpg","tornado-coffee",{"en":405,"vi":405},"TORNADO COFFEE",{"categories":407,"id":408,"primary_image":409,"rating":251,"slug":410,"title":411},[13],"e0e77565-68b8-4717-8272-2266b5f43780","https://images.thaodien.app/images/the-heritage-coffee-matcha-banh-mi-noodles/google_maps/1d5f1b7866dfe630.jpg","the-heritage-coffee-matcha-banh-mi-noodles",{"en":412,"vi":412},"The Heritage (Coffee, Matcha, Banh Mi & Noodles,...)",{"categories":414,"id":415,"primary_image":416,"rating":251,"slug":417,"title":418},[13],"85b2accf-485f-42dc-afb8-1edd7b292f67","https://images.thaodien.app/images/cafe-29/google_maps/4470f4bb350ec635.jpg","cafe-29",{"en":419,"vi":419},"CAFE 29",{"categories":421,"id":426,"primary_image":427,"rating":251,"slug":428,"title":429},[13,422,423,398,424,425],"Coffee roastery","Coffee stand","Espresso bar","Vegetarian cafe and deli","f6241675-bd8a-4d66-8701-e7df8864dab3","https://images.thaodien.app/images/thai-yen-cafe-cafe-yen-lotte-tay-ho/google_maps/3d64aba04315aea8.jpg","thai-yen-cafe-cafe-yen-lotte-tay-ho",{"en":430,"vi":430},"THAI YEN CAFE - CAFE YEN - LOTTE TÂY HỒ",{"categories":432,"id":433,"primary_image":434,"rating":251,"slug":435,"title":436},[13],"5aafd12b-05d1-4038-a0a9-9e52433a65f5","https://images.thaodien.app/images/hanoi-oi-terrace/google_maps/f4d6800bbc765da7.jpg","hanoi-oi-terrace",{"en":437,"vi":437},"Hanoi-Oi Terrace","mellow-coffee",{},"free","Mellow Coffee","2026-07-19T15:52:10.535540+00:00",[444,445,446,447],"calm","intimate","unhurried","local"]