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T's Tantan restaurant in Marunouchi
T’s Tantan (業主) · Google Places

T's Tantan

The restaurant is fully vegan, with no meat or fish.

GF·CoeliacE
VeganB
VegA
NutC
DairyB
EggB
SoyC
ShellB
HalalE
PescA
Address日本〒100-0005 Tokyo, Chiyoda City, Marunouchi, 1 Chome-9-1 T's Tantan, JR東日本改札内 グランスタ東京1F 京葉ストリートエリア内
CuisineVegan · Vegetarian
Price
Hours
Mon12:00pm-4:00pm, 5:00pm-9:00pm
TueClosed
Wed12:00pm-4:00pm, 5:00pm-9:00pm
Thu12:00pm-4:00pm, 5:00pm-9:00pm
Fri12:00pm-4:00pm, 5:00pm-9:00pm
Sat12:00pm-4:00pm, 5:00pm-9:00pm
Sun12:00pm-4:00pm, 5:00pm-9:00pm
Last verified

Per-allergen evidence

Dairy-free

B
confidence 90%

The ramen contains no dairy, according to the concept page. The restaurant is fully vegan, so dairy does not appear in its recipes. Because the kitchen is shared with T's Restaurant, which serves non-vegan dishes, cross-contamination remains possible.

Egg-free

B
confidence 90%

Vegan

B
confidence 75%

T's Tantan is a vegan ramen chain that uses no meat, seafood, dairy or eggs in its dishes, including vegan ramen, gyoza and dandan noodles. The official concept page states it is a 'vegan ramen specialty shop' using soy and sesame broth. However, no cross-contamination protocols are described; dishes like the Golden Sesame ramen reportedly contain peanut butter, and the kitchen is shared with the main T's Restaurant (which serves non-vegan items). Vegan diners comfortable with likely shared equipment should have safe options, but those with severe allergies should confirm with staff.

Honest caveat: One reviewer noted the Golden Sesame ramen contains peanut butter - peanut-allergic diners should verify.

Nut-free

C
confidence 30%
Best effort ·what tier C means

One user review states the Golden Sesame ramen "comes with a spoon of peanut butter," and no dedicated peanut-free preparation area is described. Nut-allergic diners should verify with staff and avoid this dish.

Halal

E
confidence 50%
Limited information ·what tier E means

Coeliac · Gluten-free

E
confidence 35%
Limited information ·what tier E means

Limited information: we researched T's Tantan across 9 sources but found nothing specific about its Coeliac · Gluten-free options or how the kitchen manages cross-contamination. Treat this as a starting point and call ahead to confirm before relying on it.

Cited references

[1] Aggregator Google Places listing, Google

Google Places shows only an address for the restaurant and contains no dietary information.fetched Jun 26, 2026

[2] Official MENU – T’sレストラン | 太陽と大地の食卓, T's Tantan (official menu)

The official menu page for T's Restaurant contains links to PDFs that were not extracted. It does not include any allergen information for T's Tantan.fetched Jun 26, 2026

[3] Official ORDER CAKE – T’sレストラン | 太陽と大地の食卓, T's Tantan (official menu)

The order-cake page for T's Restaurant contains no T's Tantan content.fetched Jun 26, 2026

[4] Official メニューモバイル – T’sレストラン | 太陽と大地の食卓, T's Tantan (official menu)

The mobile menu navigation shell contains no menu items and no allergen markings.fetched Jun 26, 2026

[5] Aggregator Gluten Free T, HappyCow

A HappyCow listing for a separate venue, "Gluten Free T's Kitchen," includes hours of operation (Monday, Wednesday through Sunday from 12 to 4 pm and 5 to 9 pm, closed Tuesday), notes the presence of vegan options and some allergen marking, but contains no data for T's Tantan.fetched Jun 26, 2026

[6] Verified blog T’sたんたん – T’sレストラン | 太陽と大地の食卓, ts-restaurant.jp

The official T's Tantan concept page describes the chain as fully vegan with multiple branches. It does not include allergen practice details or cross-contact information.fetched Jun 26, 2026

[7] Verified blog The 50 best vegetarian restaurants in Shibuya, wanderlog.com

The Wanderlog listicle describes T's Tantan as a popular vegan restaurant, noting the presence of peanut butter in the Golden Sesame ramen. User reviews indicate it is Muslim-friendly, with no meat and no alcohol served.fetched Jun 26, 2026

[8] Verified blog The 50 best vegan restaurants in Minato, wanderlog.com

Another Wanderlog listicle repeats the vegan description and the mention of Muslim-friendly from user reviews. It contains no details about allergen practices.fetched Jun 26, 2026
Reminder

Always confirm with venue staff before ordering. Tiers and accreditations are guides, not guarantees.

Read the methodology