Seongsu café with a teapot of lemon shiso mugwort tea: T Coffee

What is T Coffee, the quiet café near Seongsu Station?

If you're looking for a quiet café near Seongsu Station, I'd like to recommend this one. It's underground, but you can still feel a green view that keeps it from feeling stuffy — and the chocolate sand cookie was so good!

UMM SOUND Seongsu T Coffee

I'd already had a lot of coffee before coming, so I tried a tea instead — it was brewed and served in a warming kettle, so I could keep drinking it hot the whole time, which I loved. I didn't expect much from the desserts since there weren't many options, but it was so good. I noticed reviews praising the warm, soft, moist scone too, so I'll have to try that next time.

How to get there: 488 meters from Seongsu Station Exit 2

Seongsu T Coffee is located 488 meters from Exit 2 of Seongsu Station. The weather was so nice it felt a little a shame to head underground, but...

The entrance and finishing reminded me of the corn pizza place in Hannam-dong. T Coffee and a pizza place share the same basement floor. The restroom seems to be shared with the pizza place — a little embarrassing, but it was clean, so it was fine.

Is there parking at T Coffee?

There's no parking support, typical of the Seongsu commercial district, so I took public transit. There was a pop-up nearby I enjoyed checking out before heading this way.

Inside T Coffee: a basement that still gets daylight

Even though the café is underground, natural light comes in, so it doesn't feel stuffy at all.

The tables and chairs have a minimal feel that adds to the sense of openness, and the atmosphere is quiet — some people were there working on laptops.

Unusually, the kitchen is right in the center of the space, which really draws the eye — that confidence was cool. The glasses and mugs are kept spotless too.

There are three types of bean grinders — nutty, acidic, and decaf, I believe.

T Coffee menu: non-coffee drinks and hand-drip coffee

At quiet Seongsu café T Coffee, non-coffee options include matcha latte, lemon ginger sparkling, lemon shiso mugwort tea, oolong tea, chocolate, and milk for kids — it's a Yes Kids Zone. There's also cold brew, latte, cappuccino, and mint latte. Since I visited late in the afternoon and was cutting back on caffeine, I ordered the lemon shiso mugwort tea, but next time I want to try the almond latte. Everything except mint latte and cold brew is available hot or iced.

There's hand-drip coffee too — Ethiopia Guji Gogugu Natural, priced at ₩8,0 per cup (not a big price gap from the regular menu), so I was curious about that too. The cupping notes — grape, tropical fruit, stone fruit, chocolate — and origin are listed in detail.

Dessert at T Coffee: the chocolate sand cookie steals the show

There's no dessert display case, just a single model of each one set out, so honestly I didn't expect much from the desserts. We ordered one chocolate sand cookie and shared it with my boyfriend, and wow, it was so good! Looking through Place reviews later, I saw praise for the scone too, so next time I want to try that moist, warm scone.

To the right of the counter, there's water and large mugs set out for anyone who's thirsty — a nice touch.

The cold brew and chocolate sand cookie came out first. A staff member brought them right to our table. The glass holding the cold brew was unusually thin, which my boyfriend found a bit awkward to hold.

Lemon shiso mugwort tea served in an insulated teapot

I ordered hot tea, and they brewed it and served it in a kettle to keep it warm, so I could keep drinking it hot the whole time.

Once tea cools, it just tastes like water, but staying warm meant I could keep enjoying it — I really appreciated that. The atmosphere was great too, and there was a lot of bamboo behind where we sat, giving it a nice green feel.

Quiet Seongsu café T Coffee, visited for a weekend date. Even though it was my first visit, I'm only leaving with good memories.

Quiet Seongsu café T Coffee / 159 Achasan-ro, Seongdong-gu, Seoul, B1