Experience the Ultimate Mushroom Burgers This Autumn with Freshness Burger's New Offerings!

Indulge in the Ultimate Mushroom Burger Experience this Autumn

As the leaves change color and the air turns crisp, Freshness Burger, a proud member of the Colowide Group, is set to thrill mushroom lovers with its latest seasonal menu launch. Starting from September 24, 2025, they will debut the brand new "Triple Mushroom Cheese Burger" and "Double Mushroom Cheese Burger" at their outlets across Japan. Known for their hearty and rich flavors, these innovative burgers will take the concept of mushroom burgers to new heights, celebrating the seasonal bounty of mushrooms.

Elevating the Autumn Flavor

For years, the "Mushroom Cheese Burger" has been a fall staple at Freshness Burger, drawing fans with its delightful combination of flavors. This year, the burger has undergone a significant transformation to ensure an even more indulgent experience. The introduction of luxurious sauces made from two of the world's most renowned mushrooms - porcini and truffle - adds an exquisite aroma and depth of taste that has become a hot topic, especially on social media.

The new Triple Mushroom Cheese Burger features three times the amount of locally sourced mushrooms, while the Double Mushroom Cheese Burger showcases two times the amount, offering a robust and substantial experience. The generous servings of grilled mushrooms contribute a caramelized aroma, ensuring juiciness and a plush texture with every bite. Each crunch bursts with the essence of mushrooms, harmonizing beautifully with the delectable premium beef patty that adds both heartiness and a perfect contrast to the mushrooms’ delicate texture. To top it off, the burgers are enveloped in melty red cheddar cheese, elevating them to unmatched levels of richness and satisfaction.

A Seasonal Highlight

As many restaurants feature seasonal moon-viewing burgers during this time of year, Freshness Burger is ready to make its mark with its mushroom offerings. Celebrating the rich aroma, savory taste, and enticing textures, the "Mushroom Cheese Burger" series is bound to leave an unforgettable impression this autumn.

Product Overview

- Product Names & Prices (tax included):

- Triple Mushroom Cheese Burger: ¥1,090
- Double Mushroom Cheese Burger: ¥990
- Includes Porcini Cream Sauce & Truffle Demi-Glace Sauce

- Sales Period:

September 24, 2025, to October 14, 2025

- Available Locations:

At Freshness Burger locations nationwide (excluding stadium and zoo locations). Please note that availability may vary by region and store during the sales period.

- Discover More About the Mushroom Cheese Burger Series: Freshness Burger Campaign Page

Unique Preparation Techniques

Point 1: Perfect Grilling Duration of 30 Seconds
The locally sourced mushrooms, considered in season from September to December, are cut into substantial chunks to maintain their original flavor and aroma. The unique 30-second grilling time used ensures that the mushrooms retain their juiciness and vibrant texture, distinguishing them from standard sliced varieties. It’s a specific commitment to quality that we believe contributes greatly to the popularity of our products.

Point 2: Luxurious Sauces Crafted from the World's Best Mushrooms
Two gourmet sauces are created using two of the world’s top mushrooms – porcini and truffle - merging perfectly with the burgers to provide a unique mushroom experience.

Point 3: Juicy Patties and Melting Cheddar
The quarter-pound premium beef patty, filled with rich meat juices, guarantees a satisfying bite. Coupled with the warm and melting cheddar cheese, the flavors intertwine perfectly.

Spring Forth New Flavors!

- Mushroom Cheese Burger with Porcini Cream Sauce

Returning with a classic fan-favorite, the porcini cream sauce has been renewed to deliver an even richer experience. Adding white wine to the sauce increases its depth, with finely chopped mushrooms enhancing the texture.

- Mushroom Cheese Burger with Truffle Demi-Glace Sauce

The new autumn flavor features a rich demi-glace sauce enhanced with red wine and spices, complemented by the refined fragrance of truffle, rivaling even the best restaurant experiences.

Craft Lemonade Pairings

Completing this delightful culinary experience, Freshness Burger is also adding a limited-time craft apple ginger lemonade. Available hot or iced for ¥540, this refreshing drink is crafted using fresh domestic apples marinated with homemade ginger sauce and honey, ensuring a flavorful balance of sweetness and spice.

Quality That Matters

Freshness Burger is committed to creating delicious meals that are also good for you. Utilizing meticulous preparation methods and high-quality, fresh domestic ingredients, they pride themselves on delivering burgers that embody juicy textures and rich flavors, all contributing to your health and satisfaction.

Company Overview

- Business Name: Freshness Co., Ltd.
- CEO: Kentaro Saito
- Head Office Location: Landmark Tower 12F, 2-2-1 Minato Mirai, Nishi-ku, Yokohama, Kanagawa
- Website: Freshness Burger