# Seongsu café for a warm biscuit and two-bean americanos: T Coffee - By Dohyeon (https://superchart.com/en/@tastes-worth-sharing/) - Written Sep 2, 2026 - Local places › Cafés › Seongdong, Seoul - Sponsored: This visit was sponsored by the business. - English edition: https://superchart.com/en/@tastes-worth-sharing/seongsu-t-coffee-two-beans-biscuit/ - Also in: [한국어](https://superchart.com/ko/@tastes-worth-sharing/seongsu-t-coffee-two-beans-biscuit/index.md) ## In short T Coffee is a coffee-and-small-dessert café on the basement floor of 159 Achasan-ro in Seongsu, Seoul. After a Thai lunch nearby, the writer ordered two americanos at T Coffee — one Little Feet, one T Coffee Blend, told apart by straw color — plus one biscuit, with americanos starting at 5,500 won. Portions are small, but the coffee and the warm, fluffy biscuit beat expectations. ## Good to know - **Location**: B1, 159 Achasan-ro, Seongdong-gu, Seoul - **Building layout**: B1: T Coffee and Pizza Slice / B2: T Gallery - **Americano**: From 5,500 won - **Bean choice**: LITTLE FEET, T COFFEE BLEND - **Hand drip**: Ethiopia Guji Gugugu Natural - **What was ordered**: 2 americanos (one of each bean), 1 biscuit - **Service**: No buzzer — staff bring drinks to the table; guests return empty cups - **Price reference**: ₩5,500 ≈ $4 (2026-09-18) *as written by the visitor on Sep 2, 2026* ## Finding T Coffee: basement level at 159 Achasan-ro in Seongsu ![Exterior of the T Coffee building on a quiet Seongsu-dong side street](https://img.superchart.com/images/seongsu-t-coffee-two-beans-biscuit/seongsu-t-coffee-two-beans-biscuit-01-9y91d-966.webp) We'd just had a delicious Thai meal and were looking for a nearby café when we spotted a place that looked calm and quiet. Leaving behind the usual chaotic crowds of Seongsu-dong, we ended up in a quieter area and came upon this building. ![Signage for T Coffee on B1 and T Gallery on B2](https://img.superchart.com/images/seongsu-t-coffee-two-beans-biscuit/seongsu-t-coffee-two-beans-biscuit-02-15uc0-966.webp) B1 has T Coffee and Pizza Slice, and B2 has T Gallery. It was hot, so let's hurry downstairs — a quiet café in Seongsu called T Coffee. ## What is T Coffee like on a Saturday afternoon? ![T Coffee's crowded basement interior on a Saturday](https://img.superchart.com/images/seongsu-t-coffee-two-beans-biscuit/seongsu-t-coffee-two-beans-biscuit-03-1b2ek-966.webp) Wait, this many people on a Saturday? Given its location, we assumed it wouldn't be busy, so we were genuinely surprised by how packed it was 🙊 When we first walked in there were still a few open seats and we grabbed a comfortable spot, but soon almost everything filled up. ![Coffee brewing bar and counter with desserts on display](https://img.superchart.com/images/seongsu-t-coffee-two-beans-biscuit/seongsu-t-coffee-two-beans-biscuit-04-1lksm-m-966.webp) Anyway, seats secured, time to order. We could see a bit of dessert near the spot where they were brewing coffee. ## T Coffee's menu and its two americano beans ![T Coffee's menu board listing americanos and hand drip](https://img.superchart.com/images/seongsu-t-coffee-two-beans-biscuit/seongsu-t-coffee-two-beans-biscuit-05-siope-966.webp) Americano starts at ₩5,500 👀 Interesting that they have a mint latte. There was also a hand drip called Ethiopia Guji Gugugu Natural, but the price felt like a bit much, so we're going with americanos for now. ![Small desserts on display, including sandwiches and biscuits](https://img.superchart.com/images/seongsu-t-coffee-two-beans-biscuit/seongsu-t-coffee-two-beans-biscuit-06-w8izf-966.webp) There were a few cute little desserts — sandwiches, biscuits, and so on. This was probably the actual items on display. The sizes are on the petite side, so it's not for filling up but more for a sweet little taste. ![Sign describing the Little Feet and T Coffee Blend beans](https://img.superchart.com/images/seongsu-t-coffee-two-beans-biscuit/seongsu-t-coffee-two-beans-biscuit-07-7fy53-966.webp) There were two bean options: LITTLE FEET and T COFFEE BLEND. Think of it as nutty versus acidic — we each ordered one of each. These days I only go for the acidic ones, no matter what. And we also ordered a biscuit. ## Straw colors tell the beans apart as coffee and biscuit arrive ![Two iced americanos placed on the table](https://img.superchart.com/images/seongsu-t-coffee-two-beans-biscuit/seongsu-t-coffee-two-beans-biscuit-08-13hoa-966.webp) The two americanos showed up first ✨ No buzzer — a staff member brought them straight to our table. Do they just memorize where everyone's sitting? 🙊 The vibe was that you bring your empty cup back once you're done. ![Two americanos with different colored straws](https://img.superchart.com/images/seongsu-t-coffee-two-beans-biscuit/seongsu-t-coffee-two-beans-biscuit-09-d4o39-966.webp) They explained which was which bean while serving, but looking again, the straws were actually different colors. That's a nice touch of thoughtfulness ❗️ Since both are iced americanos, it'd be easy to mix them up mid-drink, but with different straw colors it's easy to tell them apart. ![Small-sized iced americano cup with a person-shaped sticker](https://img.superchart.com/images/seongsu-t-coffee-two-beans-biscuit/seongsu-t-coffee-two-beans-biscuit-10-1opu0-966.webp) The coffee size felt a bit small to me, used to mega-sized cups . . 🐒 T Coffee doesn't seem to be a café that wins on quantity. Which, honestly, makes me even more curious about the taste. There was a cute person-shaped sticker, so I grabbed it. ![T Coffee's biscuit served on a plate](https://img.superchart.com/images/seongsu-t-coffee-two-beans-biscuit/seongsu-t-coffee-two-beans-biscuit-11-f2wcz-966.webp) Then the biscuit arrived. There was also a cream sandwich and a cheesecake?, but we picked the one that looked (somewhat?) biggest. This one, too, would probably disappear in a few bites, but let's just taste it. Luckily we're already full. ![Table with two americanos and the biscuit](https://img.superchart.com/images/seongsu-t-coffee-two-beans-biscuit/seongsu-t-coffee-two-beans-biscuit-12-2fzu1-966.webp) Honestly, our order was pretty boring. Two americanos. If we'd ordered something more photogenic like the mint latte or matcha latte, the visuals would've been way flashier. ![View of the table while drinking the iced americano](https://img.superchart.com/images/seongsu-t-coffee-two-beans-biscuit/seongsu-t-coffee-two-beans-biscuit-13-1sgf2-966.webp) We were just too hot and desperate for iced americano drinking, unfortunately for me . . ![Close-up of the irregularly shaped biscuit](https://img.superchart.com/images/seongsu-t-coffee-two-beans-biscuit/seongsu-t-coffee-two-beans-biscuit-14-1xz04-966.webp) ### How is T Coffee's biscuit different from a scone? The biscuit's shape felt a bit different from what I usually see at other cafés. Not a very standardized shape (though I feel like I've seen something similar somewhere?). At first glance, the surface looked hard. ![Soft biscuit cut in half with a fork, cross-section visible](https://img.superchart.com/images/seongsu-t-coffee-two-beans-biscuit/seongsu-t-coffee-two-beans-biscuit-15-ux0fk-966.webp) But the moment I cut into it, it was really soft. It sliced right through even with barely any pressure from the fork. This biscuit is way softer than a scone. Also completely different from the biscuits at KFC — those are totally hard. ![A bite-sized piece of the warm biscuit](https://img.superchart.com/images/seongsu-t-coffee-two-beans-biscuit/seongsu-t-coffee-two-beans-biscuit-16-1n4o8-966.webp) With the first bite I could feel warmth and fluffiness all at once. It was better than I expected, and genuinely good ❗️ I didn't have high hopes 🙊 With a biscuit like this, I feel like I could eat three in one sitting. ## Is T Coffee in Seongsu worth a visit? Final verdict ![Nearly finished americano with the remaining biscuit](https://img.superchart.com/images/seongsu-t-coffee-two-beans-biscuit/seongsu-t-coffee-two-beans-biscuit-17-vlepp-966.webp) The coffee was tastier than expected, and the only downside was watching it disappear. T Coffee really is a coffee-lover's spot. Please give us more, sir . . 🙈 The biscuit vanished bit by bit too, gone before we knew it. ![T Coffee's thin, large water glass](https://img.superchart.com/images/seongsu-t-coffee-two-beans-biscuit/seongsu-t-coffee-two-beans-biscuit-18-1vtui-966.webp) I also liked that the water glasses were thin and pretty large. So many cafés have tiny water glasses that make you go back and forth constantly, but here I only needed one refill after the first glass (gotta drink lots of water). T Coffee seems to draw a lot of office workers from around Seongsu, and since the coffee itself is genuinely good, I'd love to come back sometime. We had a great time chatting away too. Ate well, drank well, heading out now. ![Final shot of coffee and dessert on the T Coffee table](https://img.superchart.com/images/seongsu-t-coffee-two-beans-biscuit/seongsu-t-coffee-two-beans-biscuit-19-11ie7-1200.webp) ## Where it is - T Coffee (티 커피) - B1, 159 Achasan-ro, Seongdong-gu, Seoul, South Korea - 서울특별시 성동구 아차산로 159 지하1층 - 37.5433996, 127.0618187 - Google Maps: https://www.google.com/maps/search/%ED%8B%B0%20%EC%BB%A4%ED%94%BC/@37.5433996,127.0618187,17z --- Superchart · https://superchart.com/en/@tastes-worth-sharing/seongsu-t-coffee-two-beans-biscuit/ · https://superchart.com/llms.txt