Chisato East Co., Ltd., based in Iida City, Nagano Prefecture, is launching a new spring/summer limited edition product: "Ichido Tabetara Moutamarun Tomato Basil Flavor." This latest addition to their popular shelf-stable boiled egg series will be available at mass retailers, tourist facilities, and online shops nationwide starting March 1st, 2026 (Sunday).
Feature 1: Powerful Partnership with Nagano Tomato, Shinshu's Leading Food Company
The most distinctive feature of this new flavor is the collaboration with Nagano Tomato Co., Ltd., a company enjoying immense trust throughout Nagano Prefecture.
Tomato Specialist with Over Half a Century of History
Since their spin-off in 1970, Nagano Tomato has led the tomato processing industry for over 55 years. This product uses 100% Nagano Prefecture-grown tomato puree processed using their expert techniques.
Unwavering Commitment to Ingredients
Nagano Tomato's philosophy of working with contracted farmers and maximizing ingredient quality resonates with Chisato East's mission to create "grandma's taste (handmade warmth)," leading to this joint development.
Refined Italian Marriage
The company's rich tomato umami and acidity are enhanced with refreshing basil aroma, creating an unprecedented Western-style boiled egg.
Feature 2: Product Characteristics of the New Tomato Basil Flavor
Proprietary Retort Technology
Using independently developed technology, the eggs can be stored at room temperature for 180 days.
Balancing Time Efficiency and Nutrition
The convenience of ready-to-eat "high-protein, low-carbohydrate" eggs satisfies both modern time-saving needs and health requirements.
Versatile Dining Occasions
Perfect as-is for snacking, as a topping for pasta or salads, or as the star of lunch boxes—this refreshing taste is ideal for spring and summer.
About "Moutamarun": From Achi Village to Nationwide—"Grandma's Taste"
"Ichido Tabetara Moutamarun" was born in 1990 as a new souvenir for Hirugami Onsen in Achi Village, South Shinshu.
35-Year Bestseller: Developed from the desire to let customers "take home the nostalgic taste of grandma's cooking in a shelf-stable form," this product has grown from its unique name and authentic flavor into the company's flagship item, now available at convenience stores, drugstores, and supermarkets nationwide.
Stable Supply System: Manufacturing at their own factory in Iida City, Nagano Prefecture, under strict quality control. With daily production capacity of tens of thousands of eggs, they deliver delicious products to customers nationwide.
Diverse Product Lineup: Providing the Joy of Choice
From classics to trending collaboration products, the lineup offers variety that never gets boring.
The Three Pillars: Soy sauce flavor with seasoning penetrating to the yolk, refreshing salted flavor, and addictive spicy chili pepper flavor.
Promoting Corporate Collaborations: Previous partnerships include Pickles Corporation (Gohan ga Susumu Kimchi flavor), Marukome (Miso flavor), and Yawataya Isogoro (Shichimi chili pepper). This collaboration with Nagano Tomato aims to further enhance brand value.
Product Details
Product Name: Ichido Tabetara Moutamarun Tomato Basil Flavor
Launch Date: March 1st, 2026 (Sunday)
Contents: 4 eggs
Reference Price: 500 yen (excluding tax)
Best Before: 180 days at room temperature
