Black Sugar - Boba Bar logo

Black Sugar - Boba Bar

Bubble tea store · San Francisco, CA

4.6 ★★★★★ 382 Google reviews · 24 photos
77%five-star reviews
0%reviews answered by the owner
Oct 2026latest review

Black Sugar - Boba Bar at a glance

Customers generally praise the store's quick service, clean environment, and distinct black sugar flavors, noting that the boba texture is often consistent. The location is described as a small, takeout-only spot near Union Square with reasonable pricing. However, several low-star reviews highlight a recurring issue where drinks are overly sweet or watery, with specific complaints that staff ignore custom sugar requests and fail to accommodate no-ice orders, resulting in diluted taste.

  • Google rating: 4.6 out of 5 from 382 reviews (77% five-star).
  • Reviews on this page: 382 Google reviews (195 with written comments, 65 with photos).
  • Owner responses: the business replied to 0% of reviews.
  • Most recent review: October 17, 2026.
  • Service: Bubble Tea Shop serving San Francisco, California.

Data from Google, last updated November 9, 2026.

Star ratings

382 Google reviews we collected

  • 5 stars29577%
  • 4 stars4813%
  • 3 stars205%
  • 2 stars72%
  • 1 star123%

Praise vs complaints

Phrases our text analysis found in 195 written reviews

  • Praise10693%
  • Complaints87%

Topic share

How often each topic comes up in the written reviews

  • Staff & attitude5246%
  • Speed & response2724%
  • Would recommend1513%
  • Price & value1211%
  • Quality & results54%
  • Honesty & trust33%

What customers talk about

We read 195 written reviews and marked every phrase about these topics. The same colors are highlighted in the reviews.

  • “Clean, nice marketing, nice manager/owner, good and fresh boba.”
    “Rude and the tapioca was undercooked.”
  • “The store is really small and has no seating, but service is fast and the place doesn't get crowded.”
  • “The bubble tea was delicious, I recommend ordering it.”
  • “This was kind of tricky for me but the drink is still worth it.”
  • “They let us in 30 mins after closing and provided us with great service!”
    “The boba is sloppy and the tea is lacking.”
  • “Honestly, this is my favorite boba shop in San Francisco.”

People customers mention

  • Milk 5 reviews
  • Tea 4 reviews
  • Square 3 reviews
  • Mango 3 reviews

praise complaint · found by our text analysis, Google review wording unchanged.

Photos

Customer reviews

4.6 ★★★★★ 382 reviews on Google · rating breakdown

Reviews from Google, shown as published (original wording, unedited).

Filter by topic — each topic is highlighted in the reviews in the same color
Matthew Qi6 reviewsTotal number of Google reviews Matthew has written across all businesses on Google Maps, not just this one.
Review from Google · view on Google
★★★★★

Goated tea, milk tea, and boba spot. Never ever in the past 6 years encountered bad boba texture. Teas/Milk teas are perfectly balanced!

Zoë WardLocal Guide · 16 reviewsTotal number of Google reviews Zoë has written across all businesses on Google Maps, not just this one.
Review from Google · view on Google
★★★★★

Clean, nice marketing, nice manager/owner, good and fresh boba. Nice selection of flavors. Would go back!

Mohana MedisettyLocal Guide · 120 reviewsTotal number of Google reviews Mohana has written across all businesses on Google Maps, not just this one.
Review from Google · view on Google
★★★★★

One of my go tos for boba

Spencer GoffLocal Guide · 65 reviewsTotal number of Google reviews Spencer has written across all businesses on Google Maps, not just this one.
Review from Google · view on Google
★★★★★

We didn’t care for the flavors of either of our drinks. Prefer Gong Cha.

Simon IauLocal Guide · 96 reviewsTotal number of Google reviews Simon has written across all businesses on Google Maps, not just this one.
Review from Google · view on Google
★★★★★

The place was clean and near the parking structure. Our order had 5 drinks, at least 2 of the lids were not closed completely!Small spill in the bag and that was my only complaint. I had HK milk tea with red beans, less ice, 25% sugar, was fine.

Homraj Oli7 reviewsTotal number of Google reviews Homraj has written across all businesses on Google Maps, not just this one.
Review from Google · view on Google
★★★★★

I am going pickup the customer order 1:51pm this time working man do with me bad activity and used bad words. This man very dirty using dirty hands when making drinks.

Esther PLocal Guide · 68 reviewsTotal number of Google reviews Esther has written across all businesses on Google Maps, not just this one.
Review from Google · view on Google
★★★★★

Updated review: I've been coming here for years because I genuinely used to love this place. Unfortunately, the quality has noticeably declined recently. As other reviewers have mentioned, they seem to add full sugar even when customers specifically request less (which is an option). My drink tasted more like sugary syrup than tea, and I couldn't taste the tea at all. I ended up not being able to drink it. What was most disappointing, though, was the customer service. I was surprised to read some of the owner's responses to previous reviews, and after my experience today, I understand those concerns. Having supported this business for years, the way I was treated was genuinely shocking and very disappointing.

Response from the owner · 4 months ago

Hi Esther, We are truly sorry to hear that your experience with us didn’t meet your expectations. If you’re willing, please send us an email with the details of what happened. We would really appreciate the opportunity to learn more and make things right. You can reach us at [email protected] Thank you for bringing this to our attention and have a great day.

Ben YoungLocal Guide · 377 reviewsTotal number of Google reviews Ben has written across all businesses on Google Maps, not just this one.
Review from Google · view on Google
★★★★★

Place has some good options and a fair price

Niko MJ4 reviewsTotal number of Google reviews Niko has written across all businesses on Google Maps, not just this one.
Review from Google · view on Google
★★★★★

pretty quick but wasnt that good

MarianaLocal Guide · 166 reviewsTotal number of Google reviews Mariana has written across all businesses on Google Maps, not just this one.
Review from Google · view on Google
★★★★★

There's no better Taro Milk Boba out there, it was literally super flavorful and perfectly sweetened. The store is really small and has no seating, but service is fast and the place doesn't get crowded.

Black Sugar - Boba Bar on Google Maps →

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