Five days to taste roasted sweet potatoes, enjoy sweet potato sweets, and fall even more in love with sweet potatoes!
As December arrives and the cold winter sets in, the delicious food of this season is, of course, roasted sweet potatoes! And when it comes to roasted sweet potatoes, there's the Winter Sweet Potato Expo 2026, Japan's largest sweet potato festival!
The Winter Sweet Potato Expo 2026, featuring delicious roasted sweet potatoes and sweet potato sweets from all over Japan, will begin selling various tickets on December 18 at 9:00 AM.
Three Types of Tickets to Choose From Based on Your Preferred Way to Enjoy!
The Winter Sweet Potato Expo 2026 offers three types of tickets to suit your preferences.
Choose Your Preferred Time Based on Your Schedule with General Admission Tickets!
General Admission Ticket
The Winter Sweet Potato Expo 2026 operates on a 2-hour time slot system, with admission tickets available for each 2-hour period. You can choose your preferred time according to your schedule. (Re-entry is permitted on the same day only)
Limited to 150 People Daily! Enter 30 Minutes Early and Secure Your Desired Products!
Early Admission Ticket
This ticket allows you to enter and shop from 9:30 AM before the official opening. With expected heavy crowds, this ticket is recommended for those who have specific products they absolutely want to buy or want to visit various shops efficiently! This popular ticket sold out quickly during the Summer Sweet Potato Expo 2025, so get yours early!
Savor Roasted Sweet Potatoes! Taste Test 18 Roasted Sweet Potatoes from Pre-Selected Shops
Tasting Judge Ticket (includes Early Admission Ticket and All-Day Free Pass)
As a judge for the National Roasted Sweet Potato Grand Prix, you can enjoy the rare experience of tasting 18 roasted sweet potatoes at once. The roasted sweet potatoes you'll taste are gems from 18 top-class sweet potato shops in Japan that passed preliminary screening. Take your time to compare and taste them, then vote on your results for the National Roasted Sweet Potato Grand Prix judging.
☆ Purchase Benefit 1: Early admission ticket to enter from 9:30 AM before opening!
☆ Purchase Benefit 2: All-day free pass allowing you to stay all day!
☆ Purchase Benefit 3: One free drink at the judging venue!
▶ Tickets on sale at special early bird prices until February 2, 2026! (Purchase on C-VALUE website)
*Roasted sweet potatoes will be served in bite-sized pieces.
*This will be a blind judging with shop names concealed.
*Each person has 30 votes.
(Photos from the Winter Sweet Potato Expo 2025 tasting judging session)
General Admission and Early Admission Tickets Available on Sweet Potato Expo Website, Tasting Judge Tickets on C-VALUE!
▼ Winter Sweet Potato Expo 2026 Official Website
https://imohaku.com/2026winter/
Information about participating shops in the National Roasted Sweet Potato Grand Prix and sweet potato sweets/food vendors is also available. Please check it out!
▼ Chibagin Shoten C-VALUE
https://www.c-value.jp/projects/risin002
In collaboration with Chibagin Shoten, which promotes products and services from Chiba Prefecture, we're running a crowdfunding campaign to share the appeal of the Winter Sweet Potato Expo 2026 ahead of time. As a reward, we're offering early sales of Tasting Judge Tickets, available before anywhere else. Please participate!
All Menu Items Revealed! A Variety-Rich Lineup You Must See!
The Winter Sweet Potato Expo official website reveals all menu items from all 31 participating shops. Check out this lineup featuring each shop's signature roasted sweet potatoes and sweet potato sweets/foods.
https://imohaku.com/2026winter/#sec4
National Roasted Sweet Potato Grand Prix Participating Shops
&potato®
OIMOcafe
sweet & healthy SAZANKA
THE IMOMITSU
Oimoya Farmers Kitchen (Hamura City, Tokyo)
Omuta/Yufuin Hanipote
Owari Imoya Imokichi
Kurashiki Imoya Mitsu no Tsuki
Koedo Kawagoe Imofukudo
Goto Shoten Sato no Imoya
Chiba Imoya Shibayama Farm
Ultra-Sweet Roasted Sweet Potato pukupuku
Tsubo Roasted Sweet Potato Dojo (Mukaijima Imoemu × Darumaya Shoten)
Tsubo Roasted Sweet Potato Nabe-chan
Hibi Roasted Sweet Potato HIBIYAKIIMO Tokyo
Furusato Workshop
Mitsuimosho 〜Enmusubi〜
Roasted Sweet Potato Sweets Hokkori Imo
Kobe Imoya Shinomoto (Grand Prix Hall of Fame Shop)
(In no particular order)
Sweet Potato Sweets & Food Participating Shops
BUTTER CREPE LAB.
Meg's Kitchen
N4.5
Sweet Potato Specialty Shop IMOBAKKA
Unagi Imo Store
Oimo Biyori
Terunuma - Sweet Potato & Dried Sweet Potato Production
Sunday Market's Imo Tempura
Pie Specialty Shop pie,guruguru
Hoshi no Ya Pop-up Store
Rapoppo Namegata Farmers Village
Roman Roasted Sweet Potato Imo no Su
(In no particular order)
Winter Sweet Potato Expo 2026 Event Details
Name: Winter Sweet Potato Expo 2026
Dates: February 11 (Wed/National Holiday) to 15 (Sun), 2026, 10:00 AM to 6:00 PM *Last day closes at 5:30 PM
Venue: Makuhari Messe Hall 3
Access: Approximately 5 minutes on foot from JR Keiyo Line Kaihin-Makuhari Station
■ Organizer/Management: Sweet Potato Expo Executive Committee ■ Special Cooperation: Chiba Prefecture
■ Sponsors (pending approval): Hokkaido / Ibaraki Prefecture / Saitama Prefecture / Tokushima Prefecture / Nagasaki Prefecture / Kumamoto Prefecture / Miyazaki Prefecture / Kagoshima Prefecture / Namegata City / Chiba City / Katori City / Saitama City / Kanoya City / National Agriculture and Food Research Organization
Official Website: https://imohaku.com/2026winter/
Official Instagram: https://www.instagram.com/satsumaimohaku/
Official X: https://twitter.com/satsumaimohaku
Official LINE: https://lin.ee/PEu0aka
