From Grandmother's Kitchen to the Nation: Fukuoka's "Mentai Nee-san" Dreams of Delivering "Waterless Mentaiko That Can Only Be Handmade"

Our company supports April Dream, which aims to make April 1st a day to announce dreams. This press release is the dream of "Mentai Nee-san."
April 1st is a day to talk about dreams, not lies.
I, "Mentai Nee-san," will announce a somewhat serious dream on this day.

—The Origin of Mentai Nee-san

Mentaiko born from grandmother's kitchen.
The origin of "Mentai Nee-san" lies in the mentaiko her grandmother used to make at home.

There was no special equipment; it was finished by facing the ingredients with traditional wisdom and experience.

The granddaughter, captivated by its taste, launched this brand with the desire to deliver this mentaiko to more people, marking the beginning of this brand.

—"We want to deliver carefully crafted mentaiko nationwide."

Why insist on "handmade"?
In modern times, with the advancement of factory mass production and digitalization, efficiency has become paramount in food production.

However, we deliberately continue to insist on "handmade" work.

The reason is simple:
——This mentaiko cannot be replicated by machines alone.

—"Waterless Mentaiko" that cannot be replicated in factories

Mentai Nee-san makes "Waterless Mentaiko."

Generally, "waterless" refers to a method of finishing food using only the moisture inherent in the ingredients, without adding water during the cooking process.
Mentai Nee-san's spicy mentaiko incorporates this waterless method to maximize the natural umami of the ingredients, preventing flavor loss and resulting in a rich, granular texture and a product that allows you to fully appreciate the original flavor of mentaiko.

The waterless method is not a one-time preparation; it involves repeated daily marinating processes to achieve the final product.

Therefore, it is not suitable for factory methods that produce large quantities in the same process.

It is a method that takes time and effort to gradually adjust the taste.

Furthermore, the finished product reflects the maker's intuition and experience.

In fact, even if the grandmother (Mentai Baa-chan) and Mentai Nee-san, who inherited her taste, use the same recipe,
subtle differences in taste emerge.
These are not errors but "individuality" created by accumulated experience and intuition.

It is a flavor that can only be born from handmade work.

This waterless mentaiko has been made by the grandmother with traditional wisdom since an era when the term "waterless" itself was not common.

It was a method naturally arrived at by pursuing deliciousness and facing the ingredients, rather than relying on special equipment.

We inherit that wisdom and deliver it to the present day.

—1st Anniversary Event Now Held

"Mentai Nee-san" celebrates its 1st anniversary today, April 1st.

To express our gratitude, we are holding a 3-part anniversary event.

In addition to a 20% discount on all items in our online shop, we are also offering a limited-time in-store sale of Mentai Nee-san's spicy mentaiko in Meinohama, Nishi-ku, Fukuoka City, which is usually only available online, providing an opportunity for customers to pick it up directly.

■Anniversary Sale Overview

【Phase 1】In-store exclusive sale *Ended

Period: March 27 (Fri) - March 29 (Sun), 2026
Location: S House Meinohama 1F, 5-19-11 Meinohama, Nishi-ku, Fukuoka City (Manufacturing plant)
Business hours: 3/27 (Fri) 11:00-19:00
　　　　　3/28 (Sat) 10:00-18:00
　　　　　3/29 (Sun) 10:00-18:00

Benefit ①: Anniversary-limited mentaiko (2 selected pieces) sold at a special price of 1,000 yen (tax included) exclusively in-store.
　　　　*Limited quantity. Up to 2 items per person. Sales end when stock runs out.
Benefit ②: 20% off all products.
　　　　*Anniversary-limited mentaiko is not eligible for discount.

　　　　*Anniversary-limited mentaiko refers to items of the same quality as selected mentaiko but excluded due to shape or weighing convenience, offered at a special anniversary price.

【Phase 2】Online Shop Sale

Period: April 4 (Sat) 00:00 - April 19 (Sun) 23:59, 2026
Target: Nationwide
Content: 20% off all products listed on the online shop.
*Shipping fees are not eligible for discount. See below for shipping fees.
URL: https://shinki-mentaiko.com/

【Phase 3】Final In-store Sale

Period: April 24 (Fri) - April 26 (Sun), 2026
Location: S House Meinohama 1F, 5-19-11 Meinohama, Nishi-ku, Fukuoka City (Manufacturing plant)
Business hours: 4/24 (Fri) 11:00-19:00
　　　　　4/25 (Sat) 10:00-18:00
　　　　　4/26 (Sun) 10:00-18:00

Benefit ①: Anniversary-limited mentaiko (2 selected pieces) sold at a special price of 1,000 yen (tax included) exclusively in-store.
　　　　*Limited quantity. Up to 2 items per person. Sales end when stock runs out.
Benefit ②: 20% off all products.
　　　　*Anniversary-limited mentaiko is not eligible for discount.
Benefit ③: Bulk purchase benefits.
　　　 ・200 yen off for purchases of 5,000 yen (tax included) or more.
　　　 ・500 yen off for purchases of 10,000 yen (tax included) or more.
　　　　*Anniversary-limited mentaiko is not eligible for bulk purchase benefits.

　　　　*Anniversary-limited mentaiko refers to items of the same quality as selected mentaiko but excluded due to shape or weighing convenience, offered at a special anniversary price.

—Our Dream

Our dream is to make this "waterless mentaiko" known to more people.

And to create a future where the wisdom and craftsmanship inherited from the past continue to endure in the coming era.

It may not be an easy path.
Nevertheless, as long as there is value that cannot be expressed by machines, we will continue this method.

We would be delighted if this mentaiko could bring a little warmth and joy to someone's dining table.

List of Products for Sale

■ Standard
A. 150g: 1,900 yen (tax included) *Approx. 3-4 pieces
B. 250g: 2,900 yen (tax included) *Approx. 5-6 pieces
C. 400g: 4,400 yen (tax included) *Approx. 8-9 pieces
*The number of pieces is an estimate as it is sold by weight.

■ Special Selection (using higher-grade pollock roe)
D. 150g: 2,400 yen (tax included) *Approx. 3-4 pieces
E. 250g: 3,700 yen (tax included) *Approx. 5-6 pieces
F. 400g: 5,700 yen (tax included) *Approx. 8-9 pieces

*The number of pieces is an estimate as it is sold by weight.
*All items are pre-packaged for gifts.

—Challenging Shipping Costs. Aiming for the Industry's Lowest.

To allow more people to easily enjoy our products,
we are also challenging ourselves to offer the industry's lowest shipping costs.

While delivering with cool便 (refrigerated delivery) to maintain quality,
we aim to minimize the burden and make it accessible.

Shipping Fee List

850 yen【Hokkaido】Hokkaido
800 yen【Northern Tohoku】Aomori, Akita, Iwate, Miyagi, Yamagata, Fukushima
700 yen【Kanto/Koshinetsu/Hokuriku/Tokai】Tokyo, Kanagawa, Chiba, Saitama, Ibaraki, Gunma, Tochigi, Yamanashi, Nagano, Niigata, Shizuoka, Aichi, Gifu, Mie, Toyama, Ishikawa, Fukui
650 yen【Kansai/Shikoku】Kyoto, Shiga, Nara, Osaka, Hyogo, Wakayama, Tokushima, Kagawa, Kochi, Ehime
600 yen【Chugoku/Kyushu】Okayama, Hiroshima, Yamaguchi, Tottori, Shimane, Fukuoka, Saga, Nagasaki, Kumamoto, Oita, Miyazaki, Kagoshima
1,350 yen【Okinawa】Okinawa
*Some remote islands not available

【Company Information】

Shinki (真喜)
Representative: Maki Toyonaga
Location: S House Meinohama 1F, 5-19-11 Meinohama, Nishi-ku, Fukuoka City, 819-0002 Japan
Business: Manufacturing and sales of spicy mentaiko
Mail: info@shinki-mentaiko.com

Online Shop: https://shinki-mentaiko.com/